Adjective
Lavoisierian (comparative more Lavoisierian, superlative most Lavoisierian)
Of or relating to Antoine-Laurent de Lavoisier (1743–1794), French nobleman and chemist central to the 18th-century Chemical Revolution.
Schofield explains it thus: "Priestley was never a chemist; in a modern, and even a Lavoisierian, sense, he was never a scientist. Source: Internet