1a highly poisonous European plant of the parsley family, with a purple-spotted stem, fern-like leaves, small white flowers, and an unpleasant smell.
Conium maculatum, family Umbelliferae
[mass noun] a sedative or poisonous potion obtained from the hemlock.
2 (also hemlock fir or spruce) a coniferous North American tree with dark green foliage which is said to smell like hemlock when crushed, grown chiefly for timber.
Genus Tsuga, family Pinaceae: several species
Origin:
Old Englishhymlice, hemlic, of unknown origin
hemlock in other Oxford dictionaries
Definition of hemlock in the US English dictionary
