primordium

noun pri·mor·di·um \-dē-əm\

plural -dia \-dē-ə\

Definition of PRIMORDIUM

: the rudiment or commencement of a part or organ

New Latin, from Latin

First Known Use: 1855

Medical Dictionary

noun pri·mor·di·um \-ē-əm\

plural -dia \-ē-ə\

: the rudiment or commencement of a part or organ : anlage <the gonadal primordium>

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