Sedgwick, Adam, 1785–1873, English geologist. He was a professor at Cambridge from 1818. His most important work was a study, made with R. I. Murchison, of the rock formation of Devonshire, which they named the Devonian system. Sedgwick also introduced the term Cambrian.
See J. W. Clark and T. M. Hughes, The Life and Letters of the Rev. Adam Sedgwick (2 vol., 1890).
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