Pep″per‐mint (?), n. [Pepper + mint.] 1. (Bot.) An aromatic and pungent plant of the genus Mentha (M. piperita), much used in medicine and confectionery.
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.
3. A lozenge of sugar flavored with peppermint.
Peppermint camphor. (Chem.) Same as Menthol. — Peppermint tree(Bot.), a name given to several Australian species of gum tree (Eucalyptus amygdalina, E. piperita, E. odorata, etc.) which have hard and durable wood, and yield an essential oil.