noun
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loop
|
anything with a round or oval shape (formed by a curve that is closed and does not intersect itself)
|
loop: anything with a round or oval shape (formed by a curve that is closed and does not intersect itself)
|
bight
|
a loop in a rope
|
bight: a loop in a rope
|
coil
|
a round shape formed by a series of concentric circles (as formed by leaves or flower petals)
|
coil: a round shape formed by a series of concentric circles (as formed by leaves or flower petals)
|
spiral
|
a plane curve traced by a point circling about the center but at increasing distances from the center
|
spiral: a plane curve traced by a point circling about the center but at increasing distances from the center
|
helix
|
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
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helix: a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
|
double_helix
|
a pair of parallel helices intertwined about a common axis
|
double_helix: a pair of parallel helices intertwined about a common axis
|
perversion
|
a curve that reverses the direction of something
|
perversion: a curve that reverses the direction of something
|
eccentricity
|
(geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis
|
eccentricity: (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis
|
element
|
a straight line that generates a cylinder or cone
|
element: a straight line that generates a cylinder or cone
|
element_of_a_cone
|
a straight line joining the apex and a point on the base
|
element_of_a_cone: a straight line joining the apex and a point on the base
|
element_of_a_cylinder
|
a straight line running the length of the cylinder
|
element_of_a_cylinder: a straight line running the length of the cylinder
|
helix_angle
|
the constant angle at which a helix cuts the elements of a cylinder or cone
|
helix_angle: the constant angle at which a helix cuts the elements of a cylinder or cone
|
kink
|
a sharp bend in a line produced when a line having a loop is pulled tight
|
kink: a sharp bend in a line produced when a line having a loop is pulled tight
|
whirl
|
the shape of something rotating rapidly
|
whirl: the shape of something rotating rapidly
|
ellipse
|
a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it
|
ellipse: a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it
|
square
|
(geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon
|
square: (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon
|
square
|
something approximating the shape of a square
|
square: something approximating the shape of a square
|
quadrate
|
a square-shaped object
|
quadrate: a square-shaped object
|
quadrilateral
|
a four-sided polygon
|
quadrilateral: a four-sided polygon
|
triangle
|
a three-sided polygon
|
triangle: a three-sided polygon
|
triangle
|
something approximating the shape of a triangle
|
triangle: something approximating the shape of a triangle
|
acute_triangle
|
a triangle whose interior angles are all acute
|
acute_triangle: a triangle whose interior angles are all acute
|
equilateral_triangle
|
a three-sided regular polygon
|
equilateral_triangle: a three-sided regular polygon
|
delta
|
an object shaped like an equilateral triangle
|
delta: an object shaped like an equilateral triangle
|
isosceles_triangle
|
a triangle with two equal sides
|
isosceles_triangle: a triangle with two equal sides
|
oblique_triangle
|
a triangle that contains no right angle
|
oblique_triangle: a triangle that contains no right angle
|
obtuse_triangle
|
a triangle that contains an obtuse interior angle
|
obtuse_triangle: a triangle that contains an obtuse interior angle
|
right_triangle
|
a triangle with one right angle
|
right_triangle: a triangle with one right angle
|
scalene_triangle
|
a triangle with no two sides of equal length
|
scalene_triangle: a triangle with no two sides of equal length
|
hexagram
|
a regular polygon formed by extending each of the sides of a regular hexagon to form two equilateral triangles
|
hexagram: a regular polygon formed by extending each of the sides of a regular hexagon to form two equilateral triangles
|
parallel
|
(mathematics) one of a set of parallel geometric figures (parallel lines or planes)
|
parallel: (mathematics) one of a set of parallel geometric figures (parallel lines or planes)
|
parallelogram
|
a quadrilateral whose opposite sides are both parallel and equal in length
|
parallelogram: a quadrilateral whose opposite sides are both parallel and equal in length
|
trapezium
|
a quadrilateral with no parallel sides
|
trapezium: a quadrilateral with no parallel sides
|
trapezoid
|
a quadrilateral with two parallel sides
|
trapezoid: a quadrilateral with two parallel sides
|
star
|
a plane figure with 5 or more points; often used as an emblem
|
star: a plane figure with 5 or more points; often used as an emblem
|
asterism
|
(mineralogy) a star-shaped figure with six rays that is seen in some crystal structures under reflected or transmitted light
|
asterism: (mineralogy) a star-shaped figure with six rays that is seen in some crystal structures under reflected or transmitted light
|
pentacle
|
a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon
|
pentacle: a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon
|
pentagon
|
a five-sided polygon
|
pentagon: a five-sided polygon
|
hexagon
|
a six-sided polygon
|
hexagon: a six-sided polygon
|
regular_hexagon
|
a hexagon with six sides of equal length
|
regular_hexagon: a hexagon with six sides of equal length
|
heptagon
|
a seven-sided polygon
|
heptagon: a seven-sided polygon
|
octagon
|
an eight-sided polygon
|
octagon: an eight-sided polygon
|
nonagon
|
a nine-sided polygon
|
nonagon: a nine-sided polygon
|
decagon
|
a polygon with 10 sides and 10 angles
|
decagon: a polygon with 10 sides and 10 angles
|
undecagon
|
an eleven-sided polygon
|
undecagon: an eleven-sided polygon
|
dodecagon
|
a twelve-sided polygon
|
dodecagon: a twelve-sided polygon
|
rhombus
|
a parallelogram with four equal sides; an oblique-angled equilateral parallelogram
|
rhombus: a parallelogram with four equal sides; an oblique-angled equilateral parallelogram
|
rhomboid
|
a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal
|
rhomboid: a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal
|
rectangle
|
a parallelogram with four right angles
|
rectangle: a parallelogram with four right angles
|
box
|
a rectangular drawing
|
box: a rectangular drawing
|
spherical_polygon
|
a figure on the surface of a sphere bounded by arcs of 3 or more great circles
|
spherical_polygon: a figure on the surface of a sphere bounded by arcs of 3 or more great circles
|
spherical_triangle
|
a spherical polygon formed by the arcs of 3 great circles
|
spherical_triangle: a spherical polygon formed by the arcs of 3 great circles
|
polyhedron
|
a solid figure bounded by plane polygons or faces
|
polyhedron: a solid figure bounded by plane polygons or faces
|
convex_polyhedron
|
a polyhedron any plane section of which is a convex polygon
|
convex_polyhedron: a polyhedron any plane section of which is a convex polygon
|
concave_polyhedron
|
a polyhedron some of whose plane sections are concave polygons
|
concave_polyhedron: a polyhedron some of whose plane sections are concave polygons
|
prism
|
a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
|
prism: a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
|
parallelepiped
|
a prism whose bases are parallelograms
|
parallelepiped: a prism whose bases are parallelograms
|
cuboid
|
a rectangular parallelepiped
|
cuboid: a rectangular parallelepiped
|
quadrangular_prism
|
a prism whose bases are quadrangles
|
quadrangular_prism: a prism whose bases are quadrangles
|
triangular_prism
|
a prism whose bases are triangles
|
triangular_prism: a prism whose bases are triangles
|
sinuosity
|
having curves
|
sinuosity: having curves
|
tortuosity
|
a tortuous and twisted shape or position
|
tortuosity: a tortuous and twisted shape or position
|
warp
|
a shape distorted by twisting or folding
|
warp: a shape distorted by twisting or folding
|
knot
|
something twisted and tight and swollen
|
knot: something twisted and tight and swollen
|
arch
|
a curved shape in the vertical plane that spans an opening
|
arch: a curved shape in the vertical plane that spans an opening
|
bell
|
the shape of a bell
|
bell: the shape of a bell
|
parabola
|
a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve
|
parabola: a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve
|
hyperbola
|
an open curve formed by a plane that cuts the base of a right circular cone
|
hyperbola: an open curve formed by a plane that cuts the base of a right circular cone
|
furcation
|
the place where something divides into branches
|
furcation: the place where something divides into branches
|
bifurcation
|
the place where something divides into two branches
|
bifurcation: the place where something divides into two branches
|
bifurcation
|
a bifurcating branch (one or both of them)
|
bifurcation: a bifurcating branch (one or both of them)
|
jog
|
a sharp change in direction
|
jog: a sharp change in direction
|
zigzag
|
an angular shape characterized by sharp turns in alternating directions
|
zigzag: an angular shape characterized by sharp turns in alternating directions
|
angle
|
the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians
|
angle: the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians
|
complementary_angles
|
two angles whose sum is a right angle
|
complementary_angles: two angles whose sum is a right angle
|
angular_distance
|
the angular separation between two objects as perceived by an observer
|
angular_distance: the angular separation between two objects as perceived by an observer
|
hour_angle
|
(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
|
hour_angle: (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
|
true_anomaly
|
the angular distance of a point in an orbit past the point of periapsis measured in degrees
|
true_anomaly: the angular distance of a point in an orbit past the point of periapsis measured in degrees
|
plane_angle
|
an angle formed by two straight lines (in the same plane)
|
plane_angle: an angle formed by two straight lines (in the same plane)
|
spherical_angle
|
an angle formed at the intersection of the arcs of two great circles
|
spherical_angle: an angle formed at the intersection of the arcs of two great circles
|
solid_angle
|
an angle formed by three or more planes intersecting at a common point (the vertex)
|
solid_angle: an angle formed by three or more planes intersecting at a common point (the vertex)
|
inclination
|
(geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)
|
inclination: (geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)
|
inclination
|
(astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
|
inclination: (astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
|
reentrant_angle
|
an interior angle of a polygon that is greater than 180 degrees
|
reentrant_angle: an interior angle of a polygon that is greater than 180 degrees
|
salient_angle
|
an angle pointing outward; an interior angle of a polygon that is less than 180 degrees
|
salient_angle: an angle pointing outward; an interior angle of a polygon that is less than 180 degrees
|
interior_angle
|
the angle inside two adjacent sides of a polygon
|
interior_angle: the angle inside two adjacent sides of a polygon
|
exterior_angle
|
the supplement of an interior angle of a polygon
|
exterior_angle: the supplement of an interior angle of a polygon
|
hip
|
(architecture) the exterior angle formed by the junction of a sloping side and a sloping end of a roof
|
hip: (architecture) the exterior angle formed by the junction of a sloping side and a sloping end of a roof
|
angle_of_incidence
|
the angle that a line makes with a line perpendicular to the surface at the point of incidence
|
angle_of_incidence: the angle that a line makes with a line perpendicular to the surface at the point of incidence
|
angle_of_attack
|
the acute angle between the direction of the undisturbed relative wind and the chord of an airfoil
|
angle_of_attack: the acute angle between the direction of the undisturbed relative wind and the chord of an airfoil
|
critical_angle
|
the smallest angle of incidence for which light is totally reflected
|
critical_angle: the smallest angle of incidence for which light is totally reflected
|
angle_of_reflection
|
the angle between a reflected ray and a line perpendicular to the reflecting surface at the point of incidence
|
angle_of_reflection: the angle between a reflected ray and a line perpendicular to the reflecting surface at the point of incidence
|
angle_of_refraction
|
the angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction
|
angle_of_refraction: the angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction
|
angle_of_extinction
|
the angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light
|
angle_of_extinction: the angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light
|
acute_angle
|
an angle less than 90 degrees but more than 0 degrees
|
acute_angle: an angle less than 90 degrees but more than 0 degrees
|
obtuse_angle
|
an angle between 90 and 180 degrees
|
obtuse_angle: an angle between 90 and 180 degrees
|
dogleg
|
angle that resembles the hind leg of a dog
|
dogleg: angle that resembles the hind leg of a dog
|
right_angle
|
the 90 degree angle between two perpendicular lines
|
right_angle: the 90 degree angle between two perpendicular lines
|
oblique_angle
|
an angle that is not a right angle or a multiple of a right angle
|
oblique_angle: an angle that is not a right angle or a multiple of a right angle
|
reflex_angle
|
an angle greater than 180 degrees (but less than 360)
|
reflex_angle: an angle greater than 180 degrees (but less than 360)
|
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