madder


Also found in: Dictionary, Thesaurus, Medical, Financial, Idioms, Wikipedia.

madder

1. any of several rubiaceous plants of the genus Rubia, esp the Eurasian R. tinctoria, which has small yellow flowers and a red fleshy root
2. the root of this plant
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

madder

[′mad·ər]
(materials)
The root of the madder plant (Rubia tinctorium), pulverized and used as source of glucosides to produce alizarin by fermentation. Also known as gamene.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Caption: Left to right: Wool yarn dyed with purple dead nettle, wool dyed with purple commercial dye powder, cotton yarn dyed with madder root, wool yarn dyed with madder root.
Cost: madder extract cost $9.88/ounce in my local fiber store; $0.35/gram, so $0.89 worth of dye
Painting in dyes of myrobalan, black and madder with alum as mordant; 59 x 82 cm.
The madder industry was huge in Europe up to 1870, with about 70,000 pounds being produced annually.
Moreover, growing madder or other biomass crops to make batteries would soak up carbon dioxide and eliminate the disposal problem - without its toxic components, a lithium-ion battery could be thrown away.
First, the madder plant, a small shrub with yellow leaves and no outward indication of a brilliant red dye, has to be dug up.
Mrs Madder, who works for Coventry City Council and has been involved with the festival since 1994, said: "My husband Mick and I have the most important job - we are looking after the beer cellar.
It has been a fairly torrid year for Madders and his team down at Sundissential but the launch of another successful event last weekend confirmed that Birmingham's wildest night has lost none of its draw.
And although Camra organiser Mick Madder admitted he would be sad to have to leave the ground, he pledged to begin the search for a new venue as soon as possible.
IN case there's any doubt that Americans are madder than a bag of whippets, here's proof.
Mick Madder, of the Coventry and North Warwickshire branch of the Campaign for Real Ale, said the event had grown in popularity each year.
The Hammer made his views clear about stars from other sports muscling in on wrestling, and Rodman got madder and madder.