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cyesis

[sahy-ee-sis]
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noun, plural cy·e·ses [sahy-ee-seez] /saɪˈi siz/.
  1. pregnancy.
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Origin of cyesis

< New Latin < Greek kýēsis pregnancy, equivalent to kyē- (variant stem of kyeîn to be pregnant) + -sis -sis
Related formscy·et·ic [sahy-et-ik] /saɪˈɛt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cyesis

cyesis

noun plural -ses (-siːz)
  1. med the technical name for pregnancy
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Word Origin

from Greek kuēsis
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

cyesis in Medicine

cyesis

(sī-ēsĭs)
n.
  1. pregnancy