Bot. [mod.L. (Necker), ad. Gr. τρύμα or τρῡμη hole, f. τρύειν to rub down, wear out.] A fruit resembling a drupe, but formed from an originally compound ovary, and having an ultimately dehiscent fleshy or fibrous exocarp, as the walnut and coco-nut; a kind of drupaceous nut.
1857. Henfrey, Elem. Bot., § 280.
1861. Bentley, Man. Bot., 321. The Tryma … differs but little from the ordinary drupe, except in being formed from an originally compound ovary.
1900. Jackson, Gloss. Bot. Terms, Tryma..., Necker’s term for a drupaceous nut with dehiscent exocarp, as the walnut.
