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primordium

[ prahy-mawr-dee-uh m ]
/ praɪˈmɔr di əm /
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SEE MORE SYNONYMS FOR primordium ON THESAURUS.COM

noun, plural pri·mor·di·a [prahy-mawr-dee-uh] /praɪˈmɔr di ə/. Embryology.

the first recognizable, histologically differentiated stage in the development of an organ.

RELATED WORDS

commencement, origin, start, birth, dawning

Nearby words

primogenitor, primogeniture, primordial, primordial ovarian follicle, primordial soup, primordium, primp, primrose, primrose family, primrose jasmine, primrose path

Origin of primordium

1665–75; < Latin prīmōrdium, in plural: beginnings, elementary stage, equivalent to prīm(us) first (see prime) + ōrd(īrī) to begin + -ium -ium; cf. exordium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for primordium

  • According to the author, anlage may be variously rendered as rudiment, inception or primordium.

    The Popular Science Monthly, July, 1900|Various

British Dictionary definitions for primordium

primordium

/ (praɪˈmɔːdɪəm) /

noun plural -dia (-dɪə)

biology an organ or part in the earliest stage of development
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

Medicine definitions for primordium

primordium

[ prī-môrdē-əm ]

n. pl. pri•mor•di•a (-dē-ə)

An aggregation of cells in the embryo indicating the first trace of an organ or structure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.