Term: air sac: any of the membranous air-filled extensions of the lungs of birds
Candidate hypernym: sac: a structure resembling a bag in an animal → 1
Candidate hypernym: suction cup: a cup-shaped device (made of rubber, glass, or plastic) that produces a partial vacuum; used to adhere or draw something to a surface → 0
Candidate hypernym: electric eel: eel-shaped freshwater fish of South America having electric organs in its body → 0
Candidate hypernym: cornsmut: a smut fungus attacking Indian corn → 0
Candidate hypernym: pectoral vein: veins that drain the pectoral muscles and empty into the subclavian vein → 0
Candidate hypernym: alligator: either of two amphibious reptiles related to crocodiles but with shorter broader snouts → 0
Candidate hypernym: blastogenesis: theory that inherited characteristics are transmitted by germ plasm → 0
Candidate hypernym: configuration: an arrangement of parts or elements → 0
Candidate hypernym: foxhole: a small dugout with a pit for individual shelter against enemy fire → 0
Candidate hypernym: circlet: a small circle → 0
Candidate hypernym: succulence: a juicy appetizingness → 0