water hemlock

2 definitions found

water hemlock - Collaborative International Dictionary of English v.0.48 :

  Water hemlock \Wa"ter hem"lock\ (Bot)
     (a) A poisonous umbelliferous plant (Cicuta virosa) of
         Europe; also, any one of several plants of that genus.
     (b) A poisonous plant ([OE]nanthe crocata) resembling the
         above.
         [1913 Webster]

water hemlock - WordNet (r) 2.1 (2005) :

  water hemlock
      n 1: tall erect highly poisonous Eurasiatic perennial herb
           locally abundant in marshy areas [syn: water hemlock,
           Cicuta verosa]