1. Any of several plants of the genus Rubia, especially R. tinctorum of Eurasia, having small yellow flowers, whorled leaves, and a reddish-brown root.
a. The root of R. tinctorum, formerly an important source of the dye alizarin.
b. A red dye obtained from these roots.
3. A medium to strong red or reddish orange.
[Middle English, from Old English mædere.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Indo-European & Semitic Roots Appendices
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