Tannin
['tænɪn]
Definition
(noun.) any of various complex phenolic substances of plant origin; used in tanning and in medicine.
Editor: Megan--From WordNet
Definition
(n.) Same as Tannic acid, under Tannic.
Checked by Alissa
Definition
n. an astringent substance found largely in oak-bark or gall-nuts of great use in tanning.—n. Tann′ate a salt of tannic acid.—adjs. Tann′ic; Tannif′erous yielding tannin.—n. Tan′-ride an enclosure spread with tan for riding.—Tannic acid an acid forming the astringent principle of the bark of oak and other trees used in tanning and in medicine.
Typed by Claire
Examples
- Melt the petrolatum and wax together and add the tannin while cooling; add the oils and stir until cold. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
- The oak, fir, hemlock and sumach are the most familiar of the many trees from which tannin is obtained for this purpose. Various. The Wonder Book of Knowledge.
Typist: Nathaniel