nux vomica(redirected from Nyassa)
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nux vom·i·ca(nŭks vom'i-kă),
Poison nut or Quaker button, the seed of Strychnos nux-vomica (family Logeniaceae), a tree of tropical Asia; it contains two alkaloids, strychnine and brucine; it has been used as a bitter tonic and central nervous system stimulant.
[Mod. L. emetic nut, fr. L. nux, nut, + vomo, to vomit]
nux vomica(nŭks vŏm′ĭ-kə)
1. A tree (Strychnos nux-vomica) native to South and Southeast Asia, having poisonous seeds that are a source of the alkaloids strychnine and brucine.
2. The seeds of this tree or a preparation or extract made from them.
Etymology: L, nux, nut, vomere, to vomit
the dried ripe seeds of a small Asian tree, Strychnos nux vomica, a source of the alkaloids strychnine and brucine. The seeds are powdered, and the strychnine content is reduced to a little more than 1% by the addition of lactose for use as a bitter tonic and nerve stimulant. It is unsafe at this concentration. Homeopathic remedies of nux vomica are much more diluted and are considered safe.
A homeopathic remedy formulated from the strychnine tree native to western Asia and Australia; it is used for colds, coughs, gastrointestinal complaints (including colic, cystitis, diarrhoea and indigestion), hangovers, headache with vertigo, haemorrhoids, hypersensitivity, irritability, laryngitis, menstrual cramping and dysfunction, morning sickness, nasal congestion, sinusitis, urinary frequency and vomiting.
powdered nut of the plant Strychnos nux-vomica. In earlier times was used as a stimulant to appetite. Also finds use in small animals as a herbal remedy, but the strychnine content presents the possibility of toxicity.