primordium Hear it!

primordium Definition

pri·mor·dium (prī môr′dē əm)

noun pl. -·dia-ə

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

Etymology: ModL < L: see primordial

primordium Usage Examples

Converse of object

migrate: This raises the question as to how cells are organized into rosettes within the migrating primordium, and how the prepattern is maintained.