3. That on which anything moves by sliding. Specifically: An inclined plane on which heavy bodies slide by the force of gravity, especially. One constructed on a mountain side for conveying logs by sliding them down.
5. A plate or slip of glass on which is a picture or delineation to be exhibited by means of a magic lantern, stereopticon, or the like; a plate on which is an object to be examined with a microscope.
8. A grace consisting of two or more small notes moving by conjoint degrees, and leading to a principal note either above or below. An apparatus in the trumpet and trombone by which the sounding tube is lengthened and shortened so as to produce the tones between the fundamental and its harmonics.
(Science: engineering) Slide box, a contrivance for holding, moving, and guiding, the cutting tool, made to slide on ways or guides by screws or otherwise, and having compound motion. Slide rule, a mathematical instrument consisting of two parts, one of which slides upon the other, for the mechanical performance of addition and subtraction, and, by means of logarithmic scales, of multiplication and division. Slide valve. Any valve which opens and closes a passageway by sliding over a port. A particular kind of sliding valve, often used in steam engines for admitting steam to the piston and releasing it, alternately, having a cuplike cavity in its face, through which the exhaust steam passes. It is situated in the steam chest, and moved by the valve gear. It is sometimes called a d valve, a name which is also applied to a semicylindrical pipe used as a sliding valve. In the illustration, a is the cylinder of a steam engine, in which plays the piston p; b the steam chest, receiving its supply from the pipe i, and containing the slide valve s, which is shown as admitting steam to one end of the cylinder through the port e, and opening]] communication between the exhaust passage f and the port c, for the release of steam from the opposite end of the cylinder.
Origin: AS. Slide.