air sac and sac both are
nouns.
As nouns,
sac is a hypernym of
air sac; that is,
sac is a
word with a broader meaning than
air sac:
- air sac:
a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
- sac: a structure resembling a bag in an animal
As nouns,
sac is a hypernym of
air sac; that is,
sac is a
word with a broader meaning than
air sac:
- air sac:
any of the thin-walled extensions of the tracheae of insects
- sac: a structure resembling a bag in an animal
As nouns,
sac is a hypernym of
air sac; that is,
sac is a
word with a broader meaning than
air sac:
- air sac:
any of the membranous air-filled extensions of the lungs of birds
- sac: a structure resembling a bag in an animal
air sac (noun) |
sac (noun) |
a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
| an enclosed space
|
any of the thin-walled extensions of the tracheae of insects
| a case or sheath especially a pollen sac or moss capsule
|
any of the membranous air-filled extensions of the lungs of birds
| a structure resembling a bag in an animal
|