Категория noun.shape

a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)radius;
a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)diameter;
a line that bisects a plane figurecenter line; centerline;
a concave shape whose distinguishing characteristic is that the concavity faces downwarddome;
a concavity in a surface (especially an anatomical depression)fossa; pit;
a small concavitycorner; niche; recess; recession;
a shape whose base is a circle and whose sides taper up to a pointcone; cone shape; conoid;
a conical shape with a wider and a narrower opening at the two endsfunnel; funnel shape;
(geometry) a curve generated by the intersection of a plane and a circular coneconic; conic section;
a point or set of points common to two or more geometric configurationsintersection;
a plane figure that deviates from a square or circle due to elongationoblong;
ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed pointcircle;
a small circlecirclet;
something approximating the shape of a circlecircle;
a circle dividing a sphere or other surface into two usually equal and symmetrical partsequator;
a plane figure with the shape of half a circlehemicycle; semicircle;
a continuous portion of a circlearc;
one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)crenation; crenature; crenel; crenelle; scallop;
a straight line connecting two points on a curvechord;
a plane figure bounded by two radii and the included arc of a circlesector;