vacuole

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vac·u·ole / ˈvakyoōˌōl/ • n. Biol. a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid. ∎  a small cavity or space in tissue, esp. in nervous tissue as the result of disease.DERIVATIVES: vac·u·o·lar / ˌvakyoōˈōlər; ˈvakyoōələr/ adj.vac·u·o·la·tion / ˌvakyoōəˈlāshən/ n.

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