Webster's Revised Unabridged Dictionary · 1913

Vacuole

Vacuole , noun

[Latin vacuus empty: compare French vacuole.]

(Biology) A small air cell, or globular space, in the interior of organic cells, either containing air, or a pellucid watery liquid, or some special chemical secretions of the cell protoplasm.
Collocations (2)
Contractile vacuole (Zoology) , See under Contractile, and see Illusts. of Infusoria, and Lobosa.
Food vacuole (Zoology) , See under Food, and see Illust. of Infusoria.