Definition of roller slide in US English:

roller slide

noun

  • 1Photography. A slide for rolling the sensitive paper or film from one spool to another by a fixed amount corresponding to the width of the image area. Now historical.

  • 2A movable carriage or table that moves over a set of rollers; a mechanism holding such rollers.

Origin

Mid 19th century (in an earlier sense). From roller + slide.

Pronunciation

roller slide

/ˈrəʊlə ˌslʌɪd/