1. a sac containing air.
2. alveolus (def. 2).
3. any of certain cavities in a bird's body connected with the lungs.
4. a saclike dilation of the wall of a trachea in many insects.
[ 1820-30 ]
1. a sac containing air.
2. alveolus (def. 2).
3. any of certain cavities in a bird's body connected with the lungs.
4. a saclike dilation of the wall of a trachea in many insects.
[ 1820-30 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012