01 n. A cell in a honeycomb.
pl.
Alveoli ((-lī))
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1.
A cell in a honeycomb.
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2.
A small cavity in a coral, shell, or fossil(Zool.)
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3.
A small depression, sac, or vesicle, as the socket of a tooth, the air cells of the lungs, the ultimate saccules of glands, etc.(Anat.)