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pri•mor•di•um



Pronunciation: (prī-môr'dē-um), [key]
n.,
pl. -di•aPronunciation: (-dē-u). [key]
Embryol.
the first recognizable, histologically differentiated stage in the development of an organ.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

primordial soupprimp
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