CONTRAYERVA

contrayerva. Contrayerva, n. a plant of several species

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Con′tra‐yer″va (?), n. [[Sp. contrayerba, literally, a counter herb, hence, an antidote for poison, fr. l. contra + herba herb.]] (Bot.) A species of Dorstenia (D. Contrayerva), a South American plant, the aromatic root of which is sometimes used in medicine as a gentle stimulant and tonic.