loasad|ˈləʊəsæd| [f.mod.L. Loasa (prob. of S. American origin) + -ad.] A plant of the family Loaseæ or Loasaceæ (native to tropical America), of which Loasa is the typical genus. 1846Lindley Veg.Kingd. 744 The resemblance between Loasads and Cucurbits.