Mathematics. Of two or more geometric figures: = similar, adj. 3a. Obsolete.

= isoperimetrical, adj. 1.

spec. Geometry. Of two or more geometric figures: having the same shape and differing only in size or orientation.

Of figures: Having equal perimeters.

Geometry. Of two figures: equal and similar; = congruent, adj. 4a. Now rare.

Geometry. Having a relation of homology, as two plane figures; homological; homographic and in the same plane. (See homology, n. 4.)

Involving or characterized by homology, homologous; relating to homology.

Geometry. Designating a figure that is in perspective with another (perspective, n. 6).

similar and similarly placed; also extended to any figures in homology with reference to the line at infinity as axis of homology.

pertaining to trigraphy.