/ Dictionary / Index B buttercup squash: Meaning and Definition of Find definitions for: but'tercup squash" Pronunciation: [key] a small, usually dark-green squash that is a variety of Cucurbita maxima, having sweet orange flesh. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. buttercup family butterfat Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language