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Pronunciation (US): 

 Dictionary entry overview: What does geometry mean? 

  The noun GEOMETRY has 1 sense:

1. the pure mathematics of points and lines and curves and surfaces

  Familiarity information: GEOMETRY used as a noun is very rare.

 Dictionary entry details 


Sense 1geometry [BACK TO TOP]


The pure mathematics of points and lines and curves and surfaces

Classified under:

Nouns denoting cognitive processes and contents

Hypernyms ("geometry" is a kind of...):

pure mathematics (the branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulness)

Domain category:

math; mathematics; maths (a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement)

Domain member category:

superposition ((geometry) the placement of one object ideally in the position of another one in order to show that the two coincide)

construct (draw with suitable instruments and under specified conditions)

inscribe (draw within a figure so as to touch in as many places as possible)

circumscribe (to draw a geometric figure around another figure so that the two are in contact but do not intersect)

truncate (replace a corner by a plane)

congruent (coinciding when superimposed)

incongruent (not congruent)

normal (forming a right angle)

translate (change the position of (figures or bodies) in space without rotation)

diagonal ((geometry) a straight line connecting any two vertices of a polygon that are not adjacent)

angle of inclination; inclination ((geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis))

foursquare; square ((geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon)

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)

conic; conic section ((geometry) a curve generated by the intersection of a plane and a circular cone)

pencil (a figure formed by a set of straight lines or light rays meeting at a point)

plane section; section ((geometry) the area created by a plane cutting through a solid)

duality ((geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry)

right (having the axis perpendicular to the base)

Hyponyms (each of the following is a kind of "geometry"):

affine geometry (the geometry of affine transformations)

elementary geometry; Euclidean geometry; parabolic geometry (geometry based on Euclid's axioms: e.g., only one line can be drawn through a point parallel to another line)

fractal geometry (the geometry of fractals)

non-Euclidean geometry (geometry based on axioms different from Euclid's)

spherical geometry (the geometry of figures on the surface of a sphere)

analytic geometry; analytical geometry; coordinate geometry (the use of algebra to study geometric properties; operates on symbols defined in a coordinate system)

plane geometry (the geometry of 2-dimensional figures)

solid geometry (the geometry of 3-dimensional space)

descriptive geometry; projective geometry (the geometry of properties that remain invariant under projection)

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