1. (

• hemlock

) poisonous drug derived from an Eurasian plant of the genus Conium; "Socrates refused to flee and died by drinking hemlock" ;

2. (

• hemlock ,
• poison_hemlock ,
• poison_parsley ,
• California_fern ,
• Nebraska_fern ,
• winter_fern ,
• Conium_maculatum

) 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 ;

3. (

• hemlock ,

) soft coarse splintery wood of a hemlock tree especially the western hemlock ;

4. (

• hemlock ,
• hemlock_tree

) an evergreen tree ;