- the first recognizable, histologically differentiated stage in the development of an organ.
Origin of primordium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for primordium
According to the author, anlage may be variously rendered as rudiment, inception or primordium.
- biology an organ or part in the earliest stage of development
- An aggregation of cells in the embryo indicating the first trace of an organ or structure.