| bane | (noun) something causing misery or death | Synonyms: curse, nemesis, scourge |
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| bugbane | (noun) a plant of the genus Cimicifuga having flowers in long racemes or panicles reported to be distasteful to insects | - |
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| (noun) North American plant having large leaves and yellowish green flowers growing in racemes; yields a toxic alkaloid used medicinally | Synonyms: American hellebore, Indian poke, Veratrum viride, white hellebore |
| dogbane | (noun) any of several poisonous perennial plants of the genus Apocynum having acrid milky juice and bell-shaped white or pink flowers and a very bitter root | - |
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| fleabane | (noun) hairy perennial Eurasian herb with yellow daisylike flowers reputed to destroy or drive away fleas | Synonyms: feabane mullet, Pulicaria dysenterica |
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| (noun) any of several North American plants of the genus Erigeron having daisylike flowers; formerly believed to repel fleas | - |
| (noun) common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus Erigeron | Synonyms: Canadian fleabane, Conyza canadensis, Erigeron canadensis, horseweed |
| henbane | (noun) poisonous fetid Old World herb having sticky hairy leaves and yellow-brown flowers; yields hyoscyamine and scopolamine | Synonyms: black henbane, Hyoscyamus niger, stinking nightshade |
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| leopardbane | (noun) any of several herbs of the genus Doronicum having alternate often clasping stem leaves cultivated for their long stalks of yellow flower heads | Synonyms: leopard's-bane |
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| ratsbane | (noun) a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer | Synonyms: arsenic, arsenic trioxide, arsenous anhydride, arsenous oxide, white arsenic |
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| sowbane | (noun) herb considered fatal to swine | Synonyms: Chenopodium hybridum, red goosefoot |
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| urbane | (adjective) showing a high degree of refinement and the assurance that comes from wide social experience | Synonyms: polished, refined |
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| wolfbane | (noun) poisonous Eurasian perennial herb with broad rounded leaves and yellow flowers and fibrous rootstock | Synonyms: Aconitum lycoctonum, wolf's bane, wolfsbane |
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| wolfsbane | (noun) poisonous Eurasian perennial herb with broad rounded leaves and yellow flowers and fibrous rootstock | Synonyms: Aconitum lycoctonum, wolf's bane, wolfbane |
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