Term: operculum: a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
Candidate hypernym: plate: any flat platelike body structure or part → 1
Candidate hypernym: security system: (computing) a system that enforces boundaries between computer networks → 0
Candidate hypernym: touchback: (American football) a play in which the opposing team has kicked the football into your end zone → 0
Candidate hypernym: kanchil: small chevrotain of southeastern Asia → 0
Candidate hypernym: ketorolac: nonsteroidal anti-inflammatory (trade name Torodal) that is given only orally → 0
Candidate hypernym: strangulation: the condition of having respiration stopped by compression of the air passage → 0
Candidate hypernym: cellulose acetate: an ester of acetic acid; used in fibers and fabrics; photographic films and varnishes → 0
Candidate hypernym: momism: excessive protection → 0
Candidate hypernym: chairlift: a ski lift on which riders (skiers or sightseers) are seated and carried up or down a mountainside; seats are hung from an endless overhead cable → 0
Candidate hypernym: cardoon: southern European plant having spiny leaves and purple flowers cultivated for its edible leafstalks and roots → 0
Candidate hypernym: skiff: any of various small boats propelled by oars or by sails or by a motor → 0