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, bulbifera, and virosa, and the Conium maculatum. See Conium.
⇒ 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.
2. Bot.
An evergreen tree common in North America (Abies, ∨ Tsuga, Canadensis); hemlock spruce.
The murmuring pines and the hemlocks.
Longfellow.
3.
The wood or timber of the hemlock tree.
Ground hemlock, ∨ Dwarf hemlock. See under Ground.
© Webster 1913.