a. Bot. [f. L. cucurbita gourd + -AL.] Epithet of one of Lindleys alliances, including the Cucurbitaceæ and allied natural orders.
1866. Treas. Bot., 358. Cucurbitaceæ A natural order of polypetalous and gamopetalous calycifloral dicotyledons, characterising Lindleys cucurbital alliance.