glissando
Pronunciation: /gliˈsändō
noun (plural glissandi /-dē/ or glissandos)
Music
a continuous slide upward or downward between two notes.
Origin
Italian, from French glissant, present participle of glisser 'to slip, slide'.
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"Slip, slidin' away,
Slip, slidin' away.
You know the nearer your destination,
The more you're slip, slidin' away."
Oh! Wait. That song is about something else, and it is not a good example of glissando.