|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|1.||Christopher, known as Kit Carson. 1809--68, US frontiersman, trapper, scout, and Indian agent|
|2.||Edward Henry, Baron. 1854--1935, Anglo-Irish politician and lawyer; led northern Irish resistance to the British government's plan for home rule for Ireland|
|3.||Rachel (Louise). 1907--64, US marine biologist and science writer; author of Silent Spring (1962)|
|4.||Willie, full name William Hunter Fisher Carson. born 1942, Scottish jockey; retired in 1997|
|Carson (kär'sən) Pronunciation Key
American marine biologist and writer whose best-known book, Silent Spring (1962), was an influential study of the dangerous effects of synthetic pesticides on food chains. Public reaction to the book resulted in stricter controls on pesticide use and shaped the ideas of the modern environmental movement.