Pronunciation: (wûrm'sēd"), [key]
1. the dried, unexpanded flower heads of a wormwood, Artemisia cina (Levant wormseed), or the fruit of certain goosefoots, esp. Chenopodium anthelminticum (or C. ambrosioides), the Mexican tea or American wormseed, used as an anthelmintic drug.
2. any of these plants.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.