1. poisonous drug derived from an Eurasian plant of the genus Conium

- Socrates refused to flee and died by drinking hemlock

Definition categories: substance, phytotoxin

2. 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

Definition categories: plant

3. soft coarse splintery wood of a hemlock tree especially the western hemlock

Definition categories: plant, wood

4. an evergreen tree

Definition categories: plant, conifer