Any film that is packaged in rolls (typically for multiple exposures) rather than single-exposure sheets. Usually refers to medium formats, not 35mm.
Flexible film giving several exposures on a continuous length of material. Originally unbacked and loaded in a darkroom, from 1895 more usually with an opaque numbered paper backing for daylight loading.
Refers to 120, 220 and 620 film formats. Usually purchased with the ability to take either 12, 24 or 36 photos per roll.
A long piece of flexible film which is wound on a reel, spool or core.
120 format film which has an paper backing and is supplied wound on an open spool (rather than in a light-tight cassette). Also the less common double length 220. All these films are used in Medium Format cameras. The term should be applied to all camera films in roll form, including 35 mm.
Rollfilm or roll film is any type of photographic film which is wound on a spool with paper backing, as opposed to film which is wound in a cartridge. Confusingly, rollfilm was originally often referred to as "cartridge" film because of its resemblance to a shotgun cartridge. The opaque backing paper allows rollfilm to be loaded in daylight and is typically printed with frame number markings which can be viewed through a small red window at the rear of the camera.