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Alveolus: One of the tiny air sacs located at the very ends of the bronchioles within the lungs where the exchange of oxygen and carbon dioxide takes place. The alveolus looks like a cell in a honeycomb.
The word comes from the Latin diminutive of "alveus" meaning a cavity or hollow = a little cavity or hollow. The plural of alveolus is alveoli and the adjective is alveolar.
Library > Literature & Language > Dictionary ( ăl-vē ' ə-ləs ) n. , pl. , -li ( -lī ' ). A small angular cavity or pit, such as a honeycomb cell. A tooth socket ...
Definition of ALVEOLUS. 1: a small cavity or pit: as a: a socket in the jaw for a tooth b: a small air-containing compartment of the lungs in which the bronchioles ...
alveolus /al·ve·o·lus/ (al-ve´o-lus) pl. alve´oli [L.] a small saclike dilatation; see also acinus. dental alveolus one of the cavities or sockets of the jaw, in ...
al·ve·o·lus (l-v-l s) n. pl. al·ve·o·li (-l) 1. A small angular cavity or pit, such as a honeycomb cell. 2. A tooth socket in the jawbone. 3. A tiny, thin ...
noun, plural -li . 1. a little cavity, pit, or cell, as a cell of a honeycomb. 2. an air cell of the lungs, formed by the terminal dilation of tiny air passageways. 3 ...