There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
BRUCINE
brucine
(noun) a bitter alkaloid poison resembling strychnine and extracted from nux vomica
Source: WordNet® 3.1
Noun
brucine (uncountable)
(organic compound) An alkaloid related to strychnine, found in several plant species, notably Strychnos nux-vomica (nux vomica).
Source: Wiktionary
Bru"cine, n. Etym: [Cf. F. brucine, fr. James Bruce, a Scottish traveler.] (Chem.)
Definition: A poweful vegetable alkaloid, found, associated with strychnine, in the seeds of different species of Strychnos, especially in the Nux vomica. It is less powerful than strychnine. Called also brucia and brucina.
Source: Webster’s Unabridged Dictionary 1913 Edition
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GROIN
(noun) the crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals
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