vacuoles

vac*u*ole

noun

{bc}a small cavity or space in the tissues of an organism containing air or fluid

contractile vacuole

noun

{bc}a vacuole in a unicellular organism that contracts regularly to discharge fluid and especially water from the cell

food vacuole

noun

{bc}a membrane-bound vacuole (as in an amoeba) in which ingested food is digested {dx}see {dxt|amoeba|amoeba|illustration}{/dx}