n. pl. roux A mixture of flour and fat cooked together and used as a thickening. [French (beurre) roux, browned (butter), from Old French rous, reddish brown, from Latin russus, red; see reudh- in the Appendix of Indo-European roots.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.