Quick definitions from WordNet (autumn pumpkin)
▸ noun: a coarse vine widely cultivated for its non-keeping 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
▸ noun: a coarse vine widely cultivated for its non-keeping 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