Glissando

To slide. On a harp and similar instruments, Glissando is the drawing of a finger down or up a series of adjacent notes. On bowed instruments it is the passing of all or part of the way from one note to another, typically on the same string. The effect is similar, the difference being that the pitches are passed through instead of representing the fixed tones or semitones of a scale (a Glissando performed on a Trombone will sound different that one performed on a piano, for instance).