Réaumur

[rey-uh-myoo r; French rey-oh-myr] /ˈreɪ əˌmyʊər; French reɪ oʊˈmür/
noun
1.
René Antoine Ferchault de
[ruh-ney ahn-twan fer-shoh duh] /rəˈneɪ ɑ̃ˈtwan fɛrˈʃoʊ də/ (Show IPA),
1683–1757, French physicist and inventor.
adjective
2.
Also, Reaumur. noting or pertaining to a temperature scale (Réaumur scale) in which 0° represents the ice point and 80° represents the steam point.
British Dictionary definitions for Réaumur

Réaumur

/ˈreɪəˌmjʊə/
adjective
1.
indicating measurement on the Réaumur scale of temperature