• WordNet 3.6
    • n rosinweed any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
    • n rosinweed North American perennial having a resinous odor and yellow flowers
    • ***
Webster's Revised Unabridged Dictionary
    • n Rosinweed (Bot) The compass plant. See under Compass.
    • ***
Century Dictionary and Cyclopedia
    • n rosinweed Any plant of the genus Silphium; especially, S. laciniatum. See compass-plant, 1, and prairie burdock (under burdock).
    • ***