|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
Cornforth Corn·forth (kôrn'fərth, -fôrth'), John Warcup. Born 1917.
Australian-born British chemist. He shared a 1975 Nobel Prize for research on the structure of biological molecules.