Pronunciation: (kab'ut),[key] —n. 1. John(Giovanni Caboto), c1450–98?, Italian navigator in the service of England: discoverer of North American mainland 1497.
2. Richard Clarke, 1868–1939, U.S. physician and writer on medical ethics.
3. Sebastian, 1474?–1557, English navigator and explorer (son of John Cabot).
4. a male given name.