| pennyroyal | (n) พืชจำพวกมิ้นท์ |
| pennyroyal | (n) Eurasian perennial mint have small lilac-blue flowers and ovate leaves; yields an aromatic oil, Syn. Mentha pulegium |
| pennyroyal | (n) erect hairy branching American herb having purple-blue flowers; yields an essential oil used as an insect repellent and sometimes in folk medicine, Syn. American pennyroyal, Hedeoma pulegioides |
| pennyroyal oil | (n) oil from European pennyroyal having an odor like mint; used chiefly in soaps |
| pennyroyal oil | (n) aromatic oil from American pennyroyal, Syn. hedeoma oil |
| Pennyroyal | n. [ A corruption of OE. puliall royal. OE. puliall is ultimately derived fr. L. puleium, or pulegium regium (so called as being good against fleas), fr. pulex a flea; and royal is a translation of L. regium, in puleium regium. ] (Bot.) An aromatic herb (Mentha Pulegium) of Europe; also, a North American plant (Hedeoma pulegioides) resembling it in flavor. [ 1913 Webster ]
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