Definition of Ovula in US English:

Ovula

noun

Zoology
  • A genus of gastropod molluscs related to the cowries (family Ovulidae), native especially to the tropical Pacific Ocean, some species of which have a pure white oval shell; (also ovula) a member of this genus. Chiefly attributive in "ovula shell".

Origin

Early 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From scientific Latin Ovula, genus name from post-classical Latin ovulum.