primordium

(prī môrdē əm)

noun pl. primordia

Embryology the first recognizable aggregation of cells that will form a distinct organ or part of the embryo

Origin: ModL < L: see primordial

See primordium in American Heritage Dictionary 4

noun pl. pri·mor·di·a (-dē-ə)
An organ or a part in its most rudimentary form or stage of development.

Origin:

Origin: Latin prīmōrdium; see primordial

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