Biology and Anatomy. Each of the air-filled sacs or alveoli in the lungs. Obsolete.
单词 | θ28549 |
释义 | the world > life > the body > respiratory organs > [noun] > lungs > air-cell of (2) air bladder1693 Biology and Anatomy. Each of the air-filled sacs or alveoli in the lungs. Obsolete. alveolus1848 Anatomy and Zoology. Any of the small, thin-walled sacs in which the air passages of the lung terminate, and through the walls of which respiratory… |
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