LUFFA
luffa, dishcloth gourd, sponge gourd, rag gourd, strainer vine
(noun) any of several tropical annual climbers having large yellow flowers and edible young fruits; grown commercially for the mature fruit’s dried fibrous interior that is used as a sponge
loofa, loofah, luffa, loufah sponge
(noun) the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer
Source: WordNet® 3.1
Noun
luffa (plural luffas)
Alternative spelling of loofah
Source: Wiktionary
Luf"fa, n. [NL., fr. Ar. lufah.] (Bot.)
(a) A small genus of tropical cucurbitaceous plants having white
flowers, the staminate borne in racemes, and large fruits with a dry
fibrous pericarp. The fruit of several species and the species
themselves, esp. L. Ægyptiaca, are called dishcloth gourds.
(b) Any plant of this genus, or its fruit.
(c) The fibrous skeleton of the fruit, used as a sponge and in the
manufacture of caps and women's hats; -- written also loofah.
Source: Webster’s Unabridged Dictionary 1913 Edition