Film

·noun A slender thread, as that of a cobweb.

II. Film ·vt To cover with a thin skin or pellicle.

III. Film ·noun A thin skin; a pellicle; a membranous covering, causing opacity; hence, any thin, slight covering.

IV. Film ·add. ·noun The layer, usually of gelatin or collodion, containing the sensitive salts of photographic plates; also, the flexible sheet of celluloid or the like on which this layer is sometimes mounted.