tannic

• POS: Adjective
• HYPHEN: tan=nic

CIDE DICTIONARY

tannic, a. 

 Of or pertaining to tan; derived from, or resembling, tan; as, tannic acid.  [1913 Webster]

Tannic acid. (Chem.) (a) An acid obtained from nutgalls as a yellow amorphous substance, C14H10O9, having an astringent taste, and forming with ferric salts a bluish-black compound, which is the basis of common ink. Called also tannin, and gallotannic acid. (b) By extension, any one of a series of astringent substances resembling tannin proper, widely diffused through the vegetable kingdom, as in oak bark, willow, catechu, tea, coffee, etc.

OXFORD DICTIONARY

tannic, adj. of or produced from tan.

Idiom

tannic acid a complex natural organic compound of a yellowish colour used as a mordant and astringent.

Derivative

tannate n.

Etymology

F tannique (as TANNIN)