Late 19th century; earliest use found in Joseph Hooker (1817–1911), botanist. From French physiologue naturalist, expert in physiology from post-classical Latin physiologus. Compare Italian fisiologo.
Definition of physiologue in US English:
physiologue
nounˈfɪzɪəlɒɡ
rare
Physiologist.
Origin
Late 19th century; earliest use found in Joseph Hooker (1817–1911), botanist. From French physiologue naturalist, expert in physiology from post-classical Latin physiologus. Compare Italian fisiologo.