— vacuolar /vak'yooh oh"leuhr, vak"yooh euh-, vak"yeuh leuhr/ , adj.
/vak"yooh ohl'/ , n. Biol.
1. a membrane-bound cavity within a cell, often containing a watery liquid or secretion. See diag. under cell .
2. a minute cavity or vesicle in organic tissue.
[ 1850-55; 1 ]