D defs.my
Entry 1 sense Webster, 1913

Watermelon

/wôt'-ẽrm-ĕlˌ-ən/ · Wa·ter·mel·on · IPA /ˈwɔtɚˌmɛlən/
01 n. The very large ovoid or roundish fruit of a cucurbitaceous plant (Citrullus vulgaris) of many varieties; also, the plant itself. The fruit …
  1. 1.
    The very large ovoid or roundish fruit of a cucurbitaceous plant (Citrullus vulgaris) of many varieties; also, the plant itself. The fruit sometimes weighs many pounds; its pulp is usually pink in color, and full of a sweet watery juice. It is a native of tropical Africa, but is now cultivated in many countries. See Illust. of Melon.(Bot.) See: Melon