film

Concise Oxford English Dictionary © 2008 Oxford University Press:
film/fɪlm/

▶noun

• 1 a thin flexible strip of plastic or other material coated with light-sensitive emulsion for exposure in a camera.

• 2 material in the form of a very thin flexible sheet.

  ■ a thin layer covering a surface.

• 3 a story or event recorded by a camera as a series of moving images and shown in a cinema or on television.

▶verb

• 1 make a film of.

• 2 become or appear to become covered with a thin film.

– origin OE filmen ‘membrane’, of W. Gmc origin; rel. to fell5.