Definition of pyrotartrate in English:

pyrotartrate

Pronunciation /ˌpʌɪrə(ʊ)ˈtɑːtreɪt/

noun

rare Chemistry
  • A salt or ester of pyrotartaric acid.

Origin

Early 19th century; earliest use found in Thomas Thomson (1773–1852), chemist. From pyro- + tartrate, after pyrotartaric.