from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A strongly alkaline crystalline compound, NHC(NH2)2, formed by the oxidation of guanine and found in the urine as a normal product of protein metabolism. It is commonly used in the organic synthesis of plastics, resins, and explosives.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A strong base HN=C(NH2)2 obtained by the oxidation of guanine
from the GNU version of the Collaborative International Dictionary of English
- n. A strongly alkaline base, NH2.CNH.NH2, formed by the oxidation of guanin, and also obtained combined with methyl in the decomposition of creatin. Boiled with dilute sulphuric acid, it yields urea and ammonia.
guan(ine) + -id(e) + -ine2.(American Heritage® Dictionary of the English Language, Fourth Edition)