French scientist who published a six-volume natural history of insects, invented the alcohol thermometer, and devised the Réaumur scale. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
adj. Abbr. R Relating to, being, or indicated on a thermometer scale that registers the freezing point of water as 0° and the boiling point as 80°. [After René Antoine Ferchault de Réaumur.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.