nontan
nounA2Định nghĩa theo từ loại
Danh từ
nounPlural noun:
nontans
- 1.
(abbreviation, alt of, clipping, countable, uncountable)Clipping of nontannin.
[…] under certain conditions a nontan may accelerate tanning. The chemical nature of the nontan, the amount present, the amount of tannin present, and the pH of the solution are four factors that may markedly influence the reaction.
At higher temperature, a higher tan/nontan ratio and tannins of higher gelatine number were obtained.
Nguồn gốc từ
From non- + tan.