n. [ Pepper + mint. ] 1. (Bot.) An aromatic and pungent plant of the genus Mentha (Mentha piperita), much used in medicine and confectionery. [ 1913 Webster ]
2. A volatile oil (oil of peppermint) distilled from the fresh herb; also, a well-known essence or spirit (essence of peppermint) obtained from it. [ 1913 Webster ]
3. A lozenge of sugar flavored with peppermint. [ 1913 Webster ]
Peppermint camphor. (Chem.) Same as Menthol. -- Peppermint tree (Bot.), a name given to several Australian species of gum tree (Eucalyptus amygdalina, Eucalyptus piperita, E. odorata, etc.) which have hard and durable wood, and yield an essential oil. [ 1913 Webster ]