hemlock

Noun

Synonyms: poison hemlock poison parsley California fern Nebraska fern winter fern Conium maculatum hemlock tree

WordNet 3.0

Noun (4)

poisonous drug derived from an Eurasian plant of the genus Conium“Socrates refused to flee and died by drinking hemlock”
large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonousSynonyms: poison hemlock poison parsley California fern Nebraska fern winter fern Conium maculatum
soft coarse splintery wood of a hemlock tree especially the western hemlock
an evergreen treeSynonyms: hemlock tree

Webster's Dictionary (GCIDE)

Hemlock \Hem"lock\, n. [OE. hemeluc, humloc, AS. hemlic, hymlic.]

1.(Bot.) The name of several poisonous umbelliferous herbs having finely cut leaves and small white flowers, as the Cicuta maculata, Cicuta bulbifera, and Cicuta virosa, and the Conium maculatum. See Conium. [1913 Webster]

Note: The potion of hemlock administered to Socrates is by some thought to have been a decoction of Cicuta virosa, or water hemlock, by others, of Conium maculatum. [1913 Webster]

2.(Bot.) An evergreen tree common in North America (Abies Canadensis or Tsuga Canadensis); hemlock spruce. [1913 Webster]

The murmuring pines and the hemlocks.— Longfellow.[1913 Webster]

3.The wood or timber of the hemlock tree. [1913 Webster]

Ground hemlock, or Dwarf hemlock. See under Ground. [1913 Webster]