Oyster definition
A bivalve mollusk that is taken from the ocean and served raw as part of a seafood buffet is an example of an oyster.
The world is my oyster.
Other Word Forms
Noun
Origin of oyster
- Middle English oistre from Old French from Latin ostreum, ostrea from Greek ostreon ost- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- Old English ostre, from Latin ostrea; reinforced or superseded in Middle English by Anglo-Norman oistre, from Old French oistre, uistre (modern French huître), also from Latin ostrea, from Ancient Greek ὄστρεον (ostreon).
From Wiktionary