Sinclair: Meaning and Definition of

Sin•clair

1. 1876–1956, U.S. oil businessman: a major figure in the Teapot Dome scandal.
2. 1865?–1946, British novelist.
3. 1878–1968, U.S. novelist, socialist, and reformer.
4. a male given name: a family name taken from a French placename, Saint Clair.