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diathesis

[dahy-ath-uh-sis]
noun, plural di·ath·e·ses [dahy-ath-uh-seez] /daɪˈæθ əˌsiz/.
  1. Pathology. a constitutional predisposition or tendency, as to a particular disease or other abnormal state of the body or mind.
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Origin of diathesis

1645–55; < New Latin < Greek diáthesis arrangement, disposition. See dia-, thesis
Related formsdi·a·thet·ic [dahy-uh-thet-ik] /ˌdaɪ əˈθɛt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for diathesis

diathesis

noun plural -ses (-ˌsiːz)
  1. a hereditary or acquired susceptibility of the body to one or more diseases
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Derived Formsdiathetic (ˌdaɪəˈθɛtɪk), adjective

Word Origin

C17: New Latin, from Greek: propensity, from diatithenai to dispose, from dia- + tithenai to place
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

diathesis in Medicine

diathesis

(dī-ăthĭ-sĭs)
n. pl. di•ath•e•ses (-sēz′)
  1. A hereditary predisposition of the body to a disease, a group of diseases, an allergy, or another disorder.
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Related formsdi′a•thetic (dī′ə-thĕtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.