| american wormseed | (n) rank-smelling tropical American pigweed, Syn. Spanish tea, Chenopodium ambrosioides, wormseed, Mexican tea |
| wormseed mustard | (n) slender yellow-flowered European mustard often troublesome as a weed; formerly used as an anthelmintic, Syn. Erysimum cheiranthoides |
| Wormseed | n. (Bot.) Any one of several plants, as Artemisia santonica, and Chenopodium anthelminticum, whose seeds have the property of expelling worms from the stomach and intestines. [ 1913 Webster ]
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