Primordia

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; cf. exordium

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World English Dictionary
primordium (praɪˈmɔːdɪəm) [Click for IPA pronunciation guide]
 
n , pl -dia
biology an organ or part in the earliest stage of development

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00:10
Primordia is always a great word to know.
So is slumgullion. Does it mean:
a stew of meat, vegetables, potatoes, etc.
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.
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
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