/ Dictionary / Index W wormseed: Meaning and Definition of Find definitions for: worm•seed Pronunciation: (wûrm'sēd"), [key] — n. the dried, unexpanded flower heads of a wormwood, Artemisia cinaor the fruit of certain goosefoots, esp. Chenopodium anthelminticum (or C. ambrosioides), the Mexican tea or American wormseed, used as an anthelmintic drug. any of these plants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: wormseed (Thesaurus) Worms wormseed oil Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language