The Collaborative International Dictionary of English v.0.48:

Cucurbitaceae \Cucurbitaceae\ n.
   a natural family of plants including the cucumber; melon;
   squash; and pumpkin.

   Syn: family Cucurbitaceae, gourd family.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Cucurbitaceae
    n 1: a family of herbaceous vines (such as cucumber or melon or
         squash or pumpkin) [syn: Cucurbitaceae, family
         Cucurbitaceae, gourd family]