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British Dictionary definitions for porism

porism

noun
  1. a type of mathematical proposition considered by Euclid, the meaning of which is now obscure. It is thought to be a proposition affirming the possibility of finding such conditions as will render a certain problem indeterminate or capable of innumerable solutions
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Derived Formsporismatic (ˌpɔːrɪzˈmætɪk), adjective

Word Origin

C14: from Late Latin porisma, from Greek: deduction, from porizein to deduce, carry; related to Greek poros passage
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012