Term: air sac: any of the thin-walled extensions of the tracheae of insects
Candidate hypernym: body part: any part of an organism such as an organ or extremity → 1
Candidate hypernym: couch: a flat coat of paint or varnish used by artists as a primer → 0
Candidate hypernym: anklebone: the bone in the ankle that articulates with the leg bones to form the ankle joint → 0
Candidate hypernym: powdery mildew: any of various fungi of the genus Erysiphe producing powdery conidia on the host surface → 0
Candidate hypernym: cantillation: liturgical chanting → 0
Candidate hypernym: rajiformes: fish with dorsoventrally flattened bodies; includes: rays; skates; guitarfishes; sawfishes → 0
Candidate hypernym: concurrent negligence: (law) negligence of two of more persons acting independently; the plaintiff may sue both together or separately → 0
Candidate hypernym: calm air: wind moving at less than 1 knot; 0 on the Beaufort scale → 0
Candidate hypernym: naval weaponry: weaponry for warships → 0
Candidate hypernym: tyto: type and only genus of the family Tytonidae → 0
Candidate hypernym: rat-a-tat-tat: a series of short sharp taps (as made by strokes on a drum or knocks on a door) → 0