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Meaning of rosinweed

ros•in•weed

Pronunciation: (roz'in-wēd"), [key]
— n.
  1. any coarse, North American, composite plant of the genus Silphium, having a resinous juice and stalkless, paired leaves.
  2. the compass plant, S. laciniatum.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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