tannin

noun

tan·​nin ˈta-nən 

1

: any of various soluble astringent complex phenolic substances of plant origin used especially in tanning leather and dyeing textiles, manufacturing ink, clarifying wine and beer, and in medicine

2

: a substance that has a tanning effect

Examples of tannin in a Sentence

Recent Examples on the Web

This wine features black cherry, plum, and a hint of oak, with soft tannins and a smooth finish. —Joseph V Micallef, Forbes, 14 Dec. 2024

The bourbon finished with lingering hints of spice and oaky tannins. —Maggie Menderski, The Courier-Journal, 14 Dec. 2024

Balanced acidity and soft tannins wrap around flavors of cherry cola, blackberry, and cassis. —Mike Desimone and Jeff Jenssen, Robb Report, 12 Dec. 2024

The unique hue of persimmon comes from its tannins, which are traditionally known in Japan as Kakishibu. —Sj Studio, Sourcing Journal, 6 Dec. 2024

Word History

Etymology

French, from tanner to tan

First Known Use

1802, in the meaning defined at sense 1

Kids Definition

tannin

noun

tan·​nin ˈtan-ən 

: any of various substances from plants (as the oak or sumac) used in tanning leather, dyeing fabric and yarn, the making of ink, and in medicine

Medical Definition

tannin

noun

tan·​nin ˈtan-ən 

1

: any of various soluble astringent complex phenolic substances of plant origin used in tanning, dyeing, the making of ink, and in medicine as astringents and formerly in the treatment of burns

2

: a substance that has a tanning effect