pumpkin

(noun) a coarse vine widely cultivated for its large pulpy round orange fruit with firm orange skin and numerous seeds; subspecies of Cucurbita pepo include the summer squashes and a few autumn squashes. Synonyms: pumpkin vine, autumn pumpkin, Cucurbita pepo.

(noun) usually large pulpy deep-yellow round fruit of the squash family maturing in late summer or early autumn.