Definition of Macleod, John James Rickard in US English:

Macleod, John James Rickard

proper noun

  • (1876–1935), Scottish physiologist. He directed the research on pancreatic extracts by Frederick G. Banting and Charles H. Best that led to the discovery and isolation of insulin. Nobel Prize for Physiology or Medicine (1923), shared with Banting.

Pronunciation

Macleod, John James Rickard

/məˈkloud/