Biol. a fluid-filled cavity within the cytoplasm of a cell, surrounded by a membrane that usually encloses food, water, or air
Origin of vacuoleFrench ; from Classical Latin vacuus, empty
- A membrane-bound organelle in the cytoplasm of most cells, especially plant cells, containing water and dissolved substances such as salts, sugars, enzymes, and amino acids.
- A small extracellular cavity or space within tissues.
Origin of vacuoleFrench, from Latin vacuus, empty; see vacuum.