Merriam-Webster Online Dictionary
pumpkin (noun)1.
a) a fruit of any of various cultivars of herbaceous plants ( and syn. ) of the gourd family that is typically round and orange but may be another color or shape, that has a hard usually smooth skin with shallow longitudinal grooves, and that is grown for ornamental use or for its fibrous pale flesh used especially in baking or as feed for livestock - Cucurbita pepo, C. maxima, C. moschata, C. mixta C. argyrosperma
b) any of several annual chiefly trailing American plants that bear - pumpkins
2.
a strong orange color