porism

Po´rism

n.	1.	(Geom.) A proposition affirming the possibility of finding such conditions as will render a certain determinate problem indeterminate or capable of innumerable solutions.
	2.	(Gr. Geom.) A corollary.

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porism

Rare. a kind of geometrical proposition of ancient Greek mathematics arising during the investigation of some other proposition either as a corollary or as a condition that will render a certain problem indeterminate. — porismatic, adj.

See also: Mathematics