primordium
[ prahy-mawr-dee-uhm ]
/ praɪˈmɔr di əm /
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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.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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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
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Medical definitions for primordium
primordium
[ prī-môr′dē-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.