Definition of loofah
1
:any of a genus (Luffa) of Old World tropical plants of the gourd family with white to yellow flowers and large usually elongate fruits that are sometimes eaten as vegetables when immature;
also
:the fruit of a loofah
2
:a sponge consisting of the fibrous interior of the mature dried fruit of a loofah (especially Luffa aegyptiaca synonym L. cylindrica)
