a county of NW Republic of Ireland, in NW Connacht province, on the Atlantic: has many offshore islands and several large lakes. County town: Castlebar. Pop: 117 446 (2002). Area: 5397 sq km (2084 sq miles)
WordReference Random House Learner's Dictionary of American English © 2026
may•o /ˈmeɪoʊ/USA pronunciation
WordReference Random House Unabridged Dictionary of American English © 2026- n. mayonnaise.
may•o
(mā′ō),USA pronunciation n. [Informal.]
May•o (mā′ō),USA pronunciation n.
- Informal Termsmayonnaise.
- compare -o by shortening
May•o (mā′ō),USA pronunciation n.
- BiographicalCharles Horace, 1865–1939, and his brother William James, 1861–1939, U.S. surgeons.
- Place Namesa county in NW Connaught province, in the NW Republic of Ireland. 114,548;
2084 sq. mi. (5400 sq. km). Co. seat: Castlebar.
Collins Concise English Dictionary © HarperCollins Publishers::
a family of US medical practitioners. They pioneered group practice and established (1903) the Mayo Clinic in Rochester, Minnesota. Foremost among them were William Worrall Mayo (1819–1911), his sons William James Mayo (1861–1939) and Charles Horace Mayo (1865–1939), and Charles's son, Charles William Mayo (1898–1968)
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