Hypertext Webster Gateway: "tannin"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Tannic \Tan"nic\, a.
Of or pertaining to tan; derived from, or resembling, tan;
as, tannic acid.
{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.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Tannin \Tan"nin\, n. [Cf. F. tannin.] (Chem.)
Same as {Tannic acid}, under {Tannic}.
From WordNet (r) 1.7 (wn)
tannin
n : any of various complex phenolic substances of plant origin;
used in tanning and in medicine [syn: {tannic acid}]
Additional Hypertext Webster Gateway Lookup
Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents;
see the Webster Gateway FAQ,
and also the Back-end/database links and credits.