ivory nut
noun
1- the seed of a tropical American palm, which, when hardened, is a source of vegetable ivory象牙椰子, 象牙棕果（美洲的一种热带棕榈的种子, 变硬后可成为植物象牙的原料）。亦称TAGUA NUT.
1.1
- The palm is Phytelephas macrocarpa, family Palmae.这种棕榈为大果象牙棕, 拉丁名Phytelephas macrocarpa, 棕榈科。