noun a slender thread, as that of a cobweb.
2. film ·vt to cover with a thin skin or pellicle.
3. film ·noun a thin skin; a pellicle; a membranous covering, causing opacity; hence, any thin, slight covering.
4. 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.