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 (ī′yə-wä′skə, ä′yə-)
A hallucinogenic brew made from the bark and stems of a tropical South American vine of the genus Banisteriopsis, especially B. caapi, mixed with other psychotropic plants, used especially in shamanistic rituals by certain Amazonian Indian peoples.

[American Spanish, from Quechua, rope of the dead, narcotic : aya, corpse + huasca, rope.]


(ˌaɪəˈwɑːskə) or


(Plants) a Brazilian plant, Banisteriopsis caapi, that has winged fruits and yields a powerful hallucinogenic alkaloid sometimes used to treat certain disorders of the central nervous system: family Malpighiaceae
[C20: from Quechua]


(ˌɑ yəˈwɑ skə)

n., pl. -cas.
a woody South American vine, Banisteriopsis caapi, of the malpighia family, having bark that is the source of harmine, a hallucinogenic alkaloid used by Indians of the Amazon basin.
[< American Spanish; further orig. uncertain]
References in periodicals archive ?
Human psychopharmacology of hoasca, a plant hallucinogen used in ritual context in Brazil.
418, 423 (2006) (affirming under RFRA an injunction that prohibited the government's enforcing the Controlled Substances Act against a religious sect's religious use of hoasca, a tea that contained a hallucinogen).
1) To give just one example, the Supreme Court unanimously protected the use of hoasca when used sacramentally by a small Brazilian religious group, even though presumably no one on the Court uses hoasca or thinks it efficacious in worship.
For example, allowing sacramental use of hoasca, an otherwise illegal drug, does not burden any third party.
119) Finding that the RFRA contemplated that the courts would create exemptions to generally-applicable federal laws in order to relieve the free-exercise burdens on individual claimants, the majority held that the government failed to demonstrate a compelling interest for prohibiting plaintiffs' religious use of hoasca.
An epidemiological surveillance system by the UDV: Mental health recommendations concerning the religious use of hoasca.
224) Using the example of the hoasca tea used by the Christian Spiritist sect that found protection in O'Centro, the Amici argued that seizure of such a substance by customs agents would not involve a threat of penalty, thus passing muster under the Ninth Circuit's standard.
418, 439 (2006) (holding that the government failed to carry its burden in showing a compelling interest to bar the use of hoasca tea, which contains a schedule I substance, in religious ceremonies), with Gonzales v.
O Centro Espirita Beneficente Uniao Do Vegetal, (64) the Court affirmed a preliminary injunction preventing the government from using the Controlled Substances Act from prosecuting practitioners of a Amazon Rainforest religious sect that receives communion by drinking a tea that contains hoasca, a hallucinogen that is prohibited under the federal Controlled Substances Act (CSA).
The Court ruled that the federal government's interest in fighting the war on drugs and its desire to follow a fair uniform standard would not justify its refusal to accommodate the need of the religious claimants to ingest hoasca, a mildly hallucinogenic and.