• Webster's Revised Unabridged Dictionary
    • n Contrayerva (Bot) A species of Dorstenia Dorstenia Contrayerva), a South American plant, the aromatic root of which is sometimes used in medicine as a gentle stimulant and tonic.
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Century Dictionary and Cyclopedia
    • n contrayerva An aromatic bitterish root exported from tropical America, and used as a stimulant and tonic. It is the product of Dorstenia Contrayerva and D. Brasiliensis, plants belonging to the natural order Urticaceæ). The name is said to be given in Jamaica to species of Aristolochia.
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Chambers's Twentieth Century Dictionary
    • n Contrayerva kon-tra-yėr′va a stimulating and tonic aromatic root of tropical America.
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Webster's Revised Unabridged Dictionary
Sp. contrayerba, literally, a counter herb, hence, an antidote for poison, fr. l. contra + herba, herb
Chambers's Twentieth Century Dictionary
Sp. contrayerba—L. contra, against, herba, a herb.


In literature:

He was immediately blooded, had a saline Mixture with Contrayerva and Nitre, and was ordered to take a Purge in the Morning.
"An Account of the Diseases which were most frequent in the British military hospitals in Germany" by Donald Monro