1. any of various coniferous evergreen trees of the genus Tsuga of north america and eastern asia, having small cones and short flat leaves with two white bands underneath.
2. the wood of such trees, used as a source of lumber, wood pulp, and tannic acid.
3. any of several poisonous plants of the genera conium and Cicuta, such as the poison hemlock.
4. A poison obtained from the poison hemlock.

1. any of several poisonous umbelliferous plants, of the genera conium (conium maculatum and conium chaerophylloides) and Cicuta.
2. the poison obtained from these plants.
3. any of several coniferous trees, of the genus Tsuga, that grow in north america; the wood of such trees.

1. 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.
2. an evergreen tree common in north america (Abies canadensis or Tsuga canadensis); hemlock spruce.
3. the wood or timber of the hemlock tree.

1. A poisonous plant, conium maculatum, of the natural order Umbelliferæ.
2. the hemlock-spruce.

1. an evergreen tree
2. poisonous drug derived from an eurasian plant of the genus conium
3. 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 poisonous
4. soft coarse splintery wood of a hemlock tree especially the western hemlock