Porism
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Webster's Revised Unabridged Dictionary - Cite This Source - Share This
Porism
Po"rism\, n. [Gr. ? a thing procured, a deduction from a demonstration, fr. ? to bring, provide: cf. F. porisme.]1. (Geom.) A proposition affirming the possibility of finding such conditions as will render a certain determinate problem indeterminate or capable of innumerable solutions. --Playfair. 2. (Gr. Geom.) A corollary. --Brande & C. Note: Three books of porisms of Euclid have been lost, but several attempts to determine the nature of these propositions and to restore them have been made by modern geometers.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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