• (a.) Producing an operculum; -- said of the foot, or part of the foot, of certain mollusks.
<marine biology, zoology> Producing an operculum; said of the foot, or part of the foot, of certain mollusks. ... Origin: Operculum + -genous. ... (19 Mar 1998) ... 
O·per`cu·lig`e·nous adjective [ Operculum + -genous .] (Zoology) Producing an operculum; -- said of the foot, or part of the foot, of certain mollusks.