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cretin

[kreet-n or, esp. British, kret-n]
noun
  1. a person suffering from cretinism.
  2. a stupid, obtuse, or mentally defective person.
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Origin of cretin

1770–80; < French; Franco-Provençal creitin, crestin human being, literally, Christian (hence one who is human despite deformities)
Related formscre·ti·noid, adjectivecre·tin·ous, adjectivesem·i·cre·tin, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cretinoid

cretin

noun
  1. old-fashioned a person afflicted with cretinism
  2. offensive a person considered to be extremely stupid
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Derived Formscretinoid, adjectivecretinous, adjective

Word Origin for cretin

C18: from French crétin, from Swiss French crestin, from Latin Chrīstiānus Christian, alluding to the humanity of such people, despite their handicaps
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

Word Origin and History for cretinoid

cretin

n.

1779, from French crétin (18c.), from Alpine dialect crestin, "a dwarfed and deformed idiot" of a type formerly found in families in the Alpine lands, a condition caused by a congenital deficiency of thyroid hormones, from Vulgar Latin *christianus "a Christian," a generic term for "anyone," but often with a sense of "poor fellow." Related: Cretinism (1801).

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Online Etymology Dictionary, © 2010 Douglas Harper

cretinoid in Medicine

cretin

(krētn)
n.
  1. A person afflicted with cretinism.
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Related formscretin•oid′ (-oid′) adj.cretin•ous (-əs) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.