From a- (“not”) + biuret, from bi- (“two”) + uret (“urea”).
abiuret (not comparable)
- Not giving the biuret reaction; showing that it does not contain biuret.[1]
- ^ Philip Babcock Gove (editor), Webster's Third International Dictionary of the English Language, Unabridged (G. & C. Merriam Co., 1976 [1909], →ISBN), page 4