Defn: A crystalline substance (C5H5N5O) contained in guano. It is also a constituent of the liver, pancreas, and other glands in mammals.
GUANO
Gua"no, n.; pl. Guanos. Etym: [Sp. guano, fr. Peruv. huanu dung.]
Defn: A substance found in great abundance on some coasts or islands frequented by sea fowls, and composed chiefly of their excrement. It is rich in phosphates and ammonia, and is used as a powerful fertilizer.
GUARA Gua"ra, n. Etym: [Braz. guará.] (Zoöl.) (a) The scarlet ibis. See Ibis. (b) A large-maned wild dog of South America (Canis jubatus) — named from its cry.
GUARANA
Gua"ra*na`, n. Etym: [Pg.] (Med.)
Defn: A preparation from the seeds of Paullinia sorbilis, a woody climber of Brazil, used in making an astringent drink, and also in the cure of headache.
GUARANINE
Gua"ra*nine`, n. (Chem.)
Defn: An alkaloid extracted from guarana. Same as Caffeine.
GUARANTEE
Guar`an*tee", n.; pl. Guarantees. Etym: [For guaranty, prob.
influenced by words like assignee, lessee, etc. See Guaranty, and cf.
Warrantee.]
1. In law and common usage: A promise to answer for the payment of some debt, or the performance of some duty, in case of the failure of another person, who is, in the first instance, liable to such payment or performance; an engagement which secures or insures another against a contingency; a warranty; a security. Same as Guaranty. His interest seemed to be a guarantee for his zeal. Macaulay.