Pennyroyal - Definition
pennyroyal
n 1: Eurasian perennial mint have small lilac-blue flowers and
ovate leaves; yields an aromatic oil [syn: pennyroyal,
Mentha pulegium]
2: erect hairy branching American herb having purple-blue
flowers; yields an essential oil used as an insect repellent
and sometimes in folk medicine [syn: pennyroyal, American
pennyroyal, Hedeoma pulegioides]