Definition of Air Sac in English :
Define Air Sac in English
Air Sac meaning in English
Meaning of Air Sac in English
Pronunciation of Air Sac in English
Air Sac pronunciation in English
Pronounce Air Sac in Englishsee synonyms of air sac
a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
2. air sac
any of the thin-walled extensions of the tracheae of insects
3. air sac
any of the membranous air-filled extensions of the lungs of birds
WordNet Lexical Database for English. Princeton University. 2010.
Collins English Dictionary. Copyright © HarperCollins Publishers
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.