Final answer:
Double-emulsion film refers to a film that has the emulsion coated on both sides of the base, allowing it to capture images from both the front and back.
Step-by-step explanation:
When a film has the emulsion coated on both sides of the base, it is referred to as double-emulsion film. This means that there is a layer of light-sensitive chemicals on both sides of the film's base. This allows the film to capture and record images from both the front and back.