/ Dictionary / Index C Canada moonseed: Meaning and Definition of Find definitions for: Can'ada moon'seed Pronunciation: [key] a vine, Menispermum canadense, of eastern North America, having variable leaves and black, grapelike fruit. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Canada mayflower Canada thistle Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language