glissandon.

1873 H. C. Banister Music 240 Glissando, gliding; applied to the playing of several notes successively, on the Pianoforte, by the same finger, sliding from one to the other.

1876 J. Stainer & W. A. Barrett Dict. Musical Terms (1898) 202/2 Glissando.., (1) playing a rapid passage in pianoforte music, by sliding the tips of the fingers along the keys instead of striking each note with a separate finger. (2) A rapid slur in violin playing.

1924 Living Age 18 Oct. 170/1 The trombone whose glissandos are becoming a favorite.

1924 Living Age 18 Oct. 170/1 A whole special technique of the violin..employing..the very slowest of glissandos.

1924 Living Age 18 Oct. 172/2 A combination of glissando and vibrato techniques.

1926 P. Whiteman & M. M. McBride Jazz ix. 202 The glissando is one of the chief embellishments of jazz.

1931 G. Jacob Orchestral Technique viii. 76 Harp glissandos are frequently used.

1939 Scrutiny 7 iv. 398 The vocal descriptions (by means of leaps of major sevenths, quarter tones, shouts, croaks and glissandi) of hail and lightning in Soliloquy are open to the same criticism.

1958 J. Aldam in P. Gammond Duke Ellington iii. 200 One of the greatest New Orleans clarinettists..he [sc. Barney Bigard] plays with a warm, vocalized tone, full of inflections and long glissandi.

1970 R. Smith Brindle Contemp. Percussion vi. 32 Sometimes glissandos are written out in full, but it is much more usual to indicate the first and last notes played, and connect them by a straight or wavy line.