Oxford Advanced American Dictionary

Definition of herb noun from the Oxford Advanced Learner's Dictionary

herb

noun
herb pronunciation English hɜːb herb pronunciation American ɜːrb herb pronunciation American hɜːrb
 
1 a plant whose leaves, flowers or seeds are used to flavour food, in medicines or for their pleasant smell. Parsley, mint and oregano are all herbsa herb garden (North American English) an herb garden2 (technical) a plant with a soft stem that dies down after flowering