Pronunciation: (shut'ur),[key] —n. 1. a solid or louvered movable cover for a window.
2. a movable cover, slide, etc., for an opening.
3. a person or thing that shuts.
4. Photog.a mechanical device for opening and closing the aperture of a camera lens to expose film or the like.
—v.t. 1. to close or provide with shutters: She shuttered the windows. 2. to close (a store or business operations) for the day or permanently.
—v.i. to close or close down: The factory has shuttered temporarily.