noun
CookingMore fully "Belon oyster". A variety of the edible oyster (Ostrea edulis) farmed in the river Belon in southern Brittany; informal (especially US) any oyster of this species.
Origin
Early 20th century. From the name of the river Belon (French Bélon, Belon, Breton Bêlon), which runs through the Finistère department of Brittany, France, and in which the oysters are farmed.
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