1. the physically discrete element that Darwin proposed as responsible for heredity

Definition categories: thought, hypothesis, possibility, theory

Sentences with gemmule as a noun:

- 1978 Patricia R. Bergquist, "Sponges" The actual formation of gemmules by fresh-water sponges is so clearly an adaptation to seasonal climatic changes, that at first it was reasonable to believe that seasonal alternation itself induced the gemmulation.