Arthur. 1821–93, British mathematician, who invented matrices Sir George. 1773–1857, British engineer and pioneer of aerial navigation. He constructed the first man-carrying glider (1853) and invented the Caterpillar tractor
WordReference Random House Unabridged Dictionary of American English © 2026
Cay•ley
(kā′lē),USA pronunciation n.
- Biographical Arthur, 1821–95, English mathematician.
Collins Concise English Dictionary © HarperCollins Publishers::