primordium

[prahy-mawr-dee-uhm]

pri·mor·di·um

[prahy-mawr-dee-uhm]
noun, plural pri·mor·di·a [-dee-uh] . Embryology.
the first recognizable, histologically differentiated stage in the development of an organ.

Origin:
1665–75; < Latin prīmōrdium, in plural: beginnings, elementary stage, equivalent to prīm(us) first (see prime) + ōrd(īrī) to begin + -ium -ium; compare exordium
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To primordium

00:10

00:09

00:08

00:07

00:06

00:05

00:04

00:03

00:02

00:01

Primordium is always a great word to know.
So is ninnyhammer. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a fool or simpleton; ninny.
Collins
World English Dictionary
primordium (praɪˈmɔːdɪəm)
 
n , pl -dia
biology an organ or part in the earliest stage of development

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

primordium pri·mor·di·um (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.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT