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aluminate
a compound of alumina and a metallic oxide
aluminate: a compound of alumina and a metallic oxide
aluminum_hydroxide
white crystalline compound that occurs naturally as the mineral gibbsite
aluminum_hydroxide: white crystalline compound that occurs naturally as the mineral gibbsite
alundum
a substance made of fused alumina
alundum: a substance made of fused alumina
cottonseed_cake
the solid matter remaining after oil has been pressed from cottonseeds
cottonseed_cake: the solid matter remaining after oil has been pressed from cottonseeds
coumarone-indene_resin
a thermoplastic resin obtained by polymerization of indene and coumarone; used in coatings and paint and asphalt tile
coumarone-indene_resin: a thermoplastic resin obtained by polymerization of indene and coumarone; used in coatings and paint and asphalt tile
indene
a colorless liquid hydrocarbon extracted from petroleum or coal tar and used in making synthetic resins
indene: a colorless liquid hydrocarbon extracted from petroleum or coal tar and used in making synthetic resins
covering_material
a material used by builders to cover surfaces
covering_material: a material used by builders to cover surfaces
creatine
an amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates both in the free form and as phosphocreatine; supplies energy for muscle contraction
creatine: an amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates both in the free form and as phosphocreatine; supplies energy for muscle contraction
creosol
a colorless to yellow aromatic liquid that is a constituent of creosote
creosol: a colorless to yellow aromatic liquid that is a constituent of creosote
creosote
a dark oily liquid obtained by distillation of coal tar; used as a preservative for wood
creosote: a dark oily liquid obtained by distillation of coal tar; used as a preservative for wood
creosote
a colorless or yellowish oily liquid obtained by distillation of wood tar; used as an antiseptic
creosote: a colorless or yellowish oily liquid obtained by distillation of wood tar; used as an antiseptic
cresol
any of three poisonous colorless isomeric phenols; derived from coal or wood tar; used as a disinfectant
cresol: any of three poisonous colorless isomeric phenols; derived from coal or wood tar; used as a disinfectant
crepe
paper with a crinkled texture; usually colored and used for decorations
crepe: paper with a crinkled texture; usually colored and used for decorations
cryogen
a liquid that boils at below -160 C and is used as a refrigerant
cryogen: a liquid that boils at below -160 C and is used as a refrigerant
cyanamide
a weak soluble dibasic acid (the parent acid of cyanamide salts)
cyanamide: a weak soluble dibasic acid (the parent acid of cyanamide salts)
cyanic_acid
a colorless poisonous volatile liquid acid that hydrolyzes readily to ammonia and carbon dioxide
cyanic_acid: a colorless poisonous volatile liquid acid that hydrolyzes readily to ammonia and carbon dioxide
cyanide
an extremely poisonous salt of hydrocyanic acid
cyanide: an extremely poisonous salt of hydrocyanic acid
sodium_cyanide
a white poisonous salt (NaCN) used in electroplating
sodium_cyanide: a white poisonous salt (NaCN) used in electroplating
cyanogen
a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
cyanogen: a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
cyano_group
the monovalent group -CN in a chemical compound
cyano_group: the monovalent group -CN in a chemical compound
nitrile
any of a class of organic compounds containing the cyano radical -CN
nitrile: any of a class of organic compounds containing the cyano radical -CN
cyanohydrin
any organic compound in which the cyano radical -CN and the hydroxyl radical -OH are attached to the same carbon atom
cyanohydrin: any organic compound in which the cyano radical -CN and the hydroxyl radical -OH are attached to the same carbon atom
cyanuric_acid
a trimer of cyanic acid
cyanuric_acid: a trimer of cyanic acid
cyclohexanol
a colorless oily alcohol that smells like camphor
cyclohexanol: a colorless oily alcohol that smells like camphor
cyclohexanol_phthalate
the cyclohexanol ester of phthalic acid
cyclohexanol_phthalate: the cyclohexanol ester of phthalic acid
cymene
any of three isotopes of a colorless aromatic liquid hydrocarbon occurring in the volatile oil of cumin and thyme and used in the manufacture of synthetic resins
cymene: any of three isotopes of a colorless aromatic liquid hydrocarbon occurring in the volatile oil of cumin and thyme and used in the manufacture of synthetic resins
cytokine
any of various protein molecules secreted by cells of the immune system that serve to regulate the immune system
cytokine: any of various protein molecules secreted by cells of the immune system that serve to regulate the immune system
cytolysin
a substance that partly or completely destroys animal cells
cytolysin: a substance that partly or completely destroys animal cells
cytosine
a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
cytosine: a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
daub
material used to daub walls
daub: material used to daub walls
decarboxylase
any of the enzymes that hydrolize the carboxyl group
decarboxylase: any of the enzymes that hydrolize the carboxyl group
defoliant
a chemical that is sprayed on plants and causes their leaves to fall off
defoliant: a chemical that is sprayed on plants and causes their leaves to fall off
de-iodinase
an enzyme that removes the iodine radical
de-iodinase: an enzyme that removes the iodine radical
demantoid
a green andradite used as a gemstone
demantoid: a green andradite used as a gemstone
andradite
a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone
andradite: a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone
demerara
a light brown raw cane sugar from Guyana
demerara: a light brown raw cane sugar from Guyana
deoxyadenosine_monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxyadenosine_monophosphate: one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxycytidine_monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxycytidine_monophosphate: one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxyguanosine_monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxyguanosine_monophosphate: one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxythymidine_monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxythymidine_monophosphate: one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxyribonucleic_acid
(biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information
deoxyribonucleic_acid: (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information
exon
sequence of a gene's DNA that transcribes into protein structures
exon: sequence of a gene's DNA that transcribes into protein structures
intron
sequence of a eukaryotic gene's DNA that is not translated into a protein
intron: sequence of a eukaryotic gene's DNA that is not translated into a protein
junk_DNA
stretches of DNA that do not code for genes
junk_DNA: stretches of DNA that do not code for genes
recombinant_deoxyribonucleic_acid
genetically engineered DNA made by recombining fragments of DNA from different organisms
recombinant_deoxyribonucleic_acid: genetically engineered DNA made by recombining fragments of DNA from different organisms
sticky_end
an end of DNA in which one strand of the double helix extends a few units beyond the other
sticky_end: an end of DNA in which one strand of the double helix extends a few units beyond the other
transposon
a segment of DNA that can become integrated at many different sites along a chromosome (especially a segment of bacterial DNA that can be translocated as a whole)
transposon: a segment of DNA that can become integrated at many different sites along a chromosome (especially a segment of bacterial DNA that can be translocated as a whole)
ribonuclease
a transferase that catalyzes the hydrolysis of ribonucleic acid
ribonuclease: a transferase that catalyzes the hydrolysis of ribonucleic acid
ribonucleic_acid
(biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell
ribonucleic_acid: (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell
messenger_RNA
the template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell
messenger_RNA: the template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell
nuclear_RNA
ribonucleic acid found in the nucleolus of the cell
nuclear_RNA: ribonucleic acid found in the nucleolus of the cell
transfer_RNA
RNA molecules present in the cell (in at least 20 varieties, each variety capable of combining with a specific amino acid) that attach the correct amino acid to the protein chain that is being synthesized at the ribosome of the cell (according to directions coded in the mRNA)
transfer_RNA: RNA molecules present in the cell (in at least 20 varieties, each variety capable of combining with a specific amino acid) that attach the correct amino acid to the protein chain that is being synthesized at the ribosome of the cell (according to directions coded in the mRNA)
deoxyribose
a sugar that is a constituent of nucleic acids
deoxyribose: a sugar that is a constituent of nucleic acids
dental_gold
an alloy of gold used in dentistry
dental_gold: an alloy of gold used in dentistry
depilatory
a chemical (usually a sulfide) used to remove hair or wool or bristles from hides
depilatory: a chemical (usually a sulfide) used to remove hair or wool or bristles from hides
derivative
a compound obtained from, or regarded as derived from, another compound
derivative: a compound obtained from, or regarded as derived from, another compound
desert_soil
a type of soil that develops in arid climates
desert_soil: a type of soil that develops in arid climates
dew
water that has condensed on a cool surface overnight from water vapor in the air
dew: water that has condensed on a cool surface overnight from water vapor in the air
dextrin
any of various polysaccharides obtained by hydrolysis of starch; a tasteless and odorless gummy substance that is used as a thickening agent and in adhesives and in dietary supplements
dextrin: any of various polysaccharides obtained by hydrolysis of starch; a tasteless and odorless gummy substance that is used as a thickening agent and in adhesives and in dietary supplements
diamond
very hard native crystalline carbon valued as a gem
diamond: very hard native crystalline carbon valued as a gem
digestive
any substance that promotes digestion
digestive: any substance that promotes digestion
mono-iodotyrosine
tyrosine with one iodine atom added
mono-iodotyrosine: tyrosine with one iodine atom added
di-iodotyrosine
tyrosine with two iodine atoms added
di-iodotyrosine: tyrosine with two iodine atoms added
iodotyrosine
tyrosine with iodine added
iodotyrosine: tyrosine with iodine added
iodothyronine
thyronine with iodine added
iodothyronine: thyronine with iodine added
tri-iodothyronine
thyronine with three iodine atoms added
tri-iodothyronine: thyronine with three iodine atoms added
dilutant
a diluting agent
dilutant: a diluting agent
dilution
a diluted solution
dilution: a diluted solution
dimer
a compound whose molecules are composed of two identical monomers
dimer: a compound whose molecules are composed of two identical monomers
dimethylglyoxime
a compound used in analysis as a precipitant for palladium or nickel
dimethylglyoxime: a compound used in analysis as a precipitant for palladium or nickel
dimpled_chad
a chad that has been punched or dimpled but all four corners are still attached
dimpled_chad: a chad that has been punched or dimpled but all four corners are still attached
diol
any of a class of alcohols having 2 hydroxyl groups in each molecule
diol: any of a class of alcohols having 2 hydroxyl groups in each molecule
dioxide
an oxide containing two atoms of oxygen in the molecule
dioxide: an oxide containing two atoms of oxygen in the molecule
dioxin
any of several toxic or carcinogenic hydrocarbons that occur as impurities in herbicides
dioxin: any of several toxic or carcinogenic hydrocarbons that occur as impurities in herbicides
disaccharidase
an enzyme that catalyzes the hydrolysis of disaccharides into monosaccharides
disaccharidase: an enzyme that catalyzes the hydrolysis of disaccharides into monosaccharides
disaccharide
any of a variety of carbohydrates that yield two monosaccharide molecules on complete hydrolysis
disaccharide: any of a variety of carbohydrates that yield two monosaccharide molecules on complete hydrolysis
dishwater
water in which dishes and cooking utensils are washed
dishwater: water in which dishes and cooking utensils are washed
distillate
a purified liquid produced by condensation from a vapor during distilling; the product of distilling
distillate: a purified liquid produced by condensation from a vapor during distilling; the product of distilling
distilled_water
water that has been purified by distillation
distilled_water: water that has been purified by distillation
exhaust
gases ejected from an engine as waste products
exhaust: gases ejected from an engine as waste products
dressed_ore
the desired mineral that is left after impurities have been removed from mined ore
dressed_ore: the desired mineral that is left after impurities have been removed from mined ore
driftwood
wood that is floating or that has been washed ashore
driftwood: wood that is floating or that has been washed ashore
drill_steel
carbon steel used for rock drills and dowels
drill_steel: carbon steel used for rock drills and dowels
docosahexaenoic_acid
an omega-3 fatty acid with 22 carbon atoms; found in fish (especially tuna and bluefish)
docosahexaenoic_acid: an omega-3 fatty acid with 22 carbon atoms; found in fish (especially tuna and bluefish)
dolomite
a kind of sedimentary rock resembling marble or limestone but rich in magnesium carbonate
dolomite: a kind of sedimentary rock resembling marble or limestone but rich in magnesium carbonate
dopamine
a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension
dopamine: a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension
dottle
the residue of partially burnt tobacco left caked in the bowl of a pipe after smoking
dottle: the residue of partially burnt tobacco left caked in the bowl of a pipe after smoking
dragon's_blood
a dark red resinous substance derived from various trees and used in photoengraving
dragon's_blood: a dark red resinous substance derived from various trees and used in photoengraving
drawing_paper
paper that is specially prepared for use in drafting
drawing_paper: paper that is specially prepared for use in drafting
drilling_mud
a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
drilling_mud: a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
dubbin
tallow mixed with oil; used to make leather soft and waterproof
dubbin: tallow mixed with oil; used to make leather soft and waterproof
Duralumin
an aluminum-based alloy
Duralumin: an aluminum-based alloy
particulate
a small discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions (usually considered to be an atmospheric pollutant)
particulate: a small discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions (usually considered to be an atmospheric pollutant)
chalk_dust
dust resulting from writing with a piece of chalk
chalk_dust: dust resulting from writing with a piece of chalk
dust
fine powdery material such as dry earth or pollen that can be blown about in the air
dust: fine powdery material such as dry earth or pollen that can be blown about in the air
dust
free microscopic particles of solid material
dust: free microscopic particles of solid material
elaidic_acid
a monounsaturated fatty acid that has the same structure as oleic acid except that it is a trans fatty acid; the major trans fatty acid in margarine and fried foods
elaidic_acid: a monounsaturated fatty acid that has the same structure as oleic acid except that it is a trans fatty acid; the major trans fatty acid in margarine and fried foods
elastomer
any of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed)
elastomer: any of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed)
element
one of four substances thought in ancient and medieval cosmology to constitute the physical universe
element: one of four substances thought in ancient and medieval cosmology to constitute the physical universe
elixir
a sweet flavored liquid (usually containing a small amount of alcohol) used in compounding medicines to be taken by mouth in order to mask an unpleasant taste
elixir: a sweet flavored liquid (usually containing a small amount of alcohol) used in compounding medicines to be taken by mouth in order to mask an unpleasant taste