/ Dictionary / Index S spiny cocklebur: Meaning and Definition of Find definitions for: spin'y cock'lebur Pronunciation: [key] a cocklebur, Xanthium spinosum, introduced into North America from Europe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spiny anteater spiny dogfish Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language