any of several tropical climbing plants of the cucurbitaceous genus Luffa, esp L. cylindrica, which is cultivated for ornament and for the fibrous interior of its fruits
loofah
2.
the fruit of any of these plants
Also called (dialect): vegetable sponge
dishcloth gourd in American English
US
1.
any of a genus (Luffa) of tropical vines of the gourd family, having thin-shelled, large, cylindrical fruits with dense fibrous interior tissues used for dishcloths or filters