1. The act of sliding; as, a slide on the ice.
2. Smooth, even passage or progress. A better slide into their business. Bacon.
3. That on which anything moves by sliding. Specifically: (a) An inclined plane on which heavy bodies slide by the force of gravity, esp. one constructed on a mountain side for conveying logs by sliding them down. (b) A surface of ice or snow on which children slide for amusement.
4. That which operates by sliding. Specifically: (a) A cover which opens or closes an aperture by sliding over it. (b) (Mach.) A moving piece which is guided by a part or parts along which it slides. (c) A clasp or brooch for a belt, or the like.
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.
6. The descent of a mass of earth, rock, or snow down a hill or mountain side; as, a land slide, or a snow slide; also, the track of bare rock left by a land slide.
7. (Geol.)
Defn: A small dislocation in beds of rock along a line of fissure.
Dana.
8. (Mus.) (a) A grace consisting of two or more small notes moving by conjoint degrees, and leading to a principal note either above or below. (b) 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.
9. (Phonetics)