noun 1. John D(avison) [dey-vuh-suh n] /ˈdeɪ və sən/ (Show IPA), 1839–1937, and his son John D(avison), Jr. 1874–1960, U.S. oil magnates and philanthropists. 2. Nelson A(ldrich) 1908–79, U.S. political leader: governor of New York 1959–73; vice president of the U.S. 1974–77 (son of John D. Rockefeller, Jr.). noun 1. John D(avison). 1839–1937, US industrialist […]
noun 1. an elm, Ulmus thomasii, of eastern North America, having deeply furrowed, grayish-brown bark. 2. the hard, heavy wood of this tree, used for making furniture and in the manufacture of various types of containers.
noun 1. Also called runner. one of the curved pieces on which a cradle or a rocking chair, rocks. 2. rocking chair. 3. a rock-‘n’-roll song: She sang a ballad and followed that with two of her well-known rockers. 4. any of various devices that operate with a rocking motion. 5. Graphic Arts. a small […]
noun, Machinery. 1. a rocking or oscillating arm or lever rotating with a moving shaft or pivoted on a stationary shaft. noun 1. a lever that rocks about a pivot, esp a lever in an internal-combustion engine that transmits the motion of a pushrod or cam to a valve