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placode

American

[plak-ohd] / ˈplæk oʊd /

noun

Embryology.

a local thickening of the endoderm in the embryo, that usually constitutes the primordium of a specific structure or organ.

1905–10; < Greek plak- (stem of pláx ) something flat, tablet + -ode ¹

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023