- a person or thing that shuts
- a movable screen or cover, typically one of a pair, for a window: shutters are usually hinged and often fitted with louvers
- an ornamental detail, typically one of a pair, resembling this but fixed in place beside a window
- anything used to cover an opening, as a slide or door on a lantern
- Photog. a device that controls the duration of an exposure by opening and closing, allowing light to reach the film or plate for a specified amount of time
She opened the shutters to let some fresh air into the room.
- An example of a shutter is a person who opens and closes the door at a theater.
- An example of a shutter is a device on the lens of the camera that opens and closes to control the amount of light entering the camera.
- An example of a shutter is a wooden panel that can be opened and closed to cover a window.
- One that shuts, as:a. A hinged cover or screen for a window, usually fitted with louvers.b. A mechanical device of a camera that controls the duration of a photographic exposure, as by opening and closing to allow light coming through the lens to expose a plate or film.
- shutters Music The movable louvers on a pipe organ, controlled by pedals, that open and close the swell box.
transitive verbshut·tered, shut·ter·ing, shut·ters
- To furnish or close with shutters: locked the doors and shuttered the windows.
- To cause to cease operations; close down: shuttered the store for the holiday.
(third-person singular simple present shutters, present participle shuttering, simple past and past participle shuttered)
shutter - Computer Definition
(1) An opaque window that is moved in one direction to let light in and in another to close off the light. In fixed-lens cameras, one shutter often suffices for aperture and speed. In most single lens reflex (SLR) cameras, the camera has a built-in shutter that pops up to let light in and drops down after a certain amount of time, while each lens contains its own diaphragm shutter that acts like an iris to let light pass (aperture setting). See shutter speed, aperture and shutter lag.
(2) To close down an operation, project or venture.
- When a subscriber called (by turning the handle of his magneto- 'generator), the shutter of the annunciator associated with his line dropped.
- This apparatus has two coils, one of which, connected across the line, is provided for the purpose of projecting the shutter, while the other is intended for its restoration and is joined in a local circuit arranged to be closed when a plug is inserted in any one of the associated jacks.
- - The invention of this instrument has generally been ascribed, as in the ninth edition of this work, to the famous Neapolitan savant of the 16th century, Giovanni Battista della Porta, but as a matter of fact the principle of the simple camera obscura, or darkened chamber with a small aperture in a window or shutter, was well known and in practical use for observing eclipses long before his time.
- The sun shining, he fixed a round glass speculum (orbem e vitro) in a window-shutter, and then closing it the images of outside objects would be seen transmitted through the aperture on to the opposite wall, or better, a white paper screen suitably placed.
- The size of the discharge aperture can be varied by means of a flexible wooden shutter sliding in a groove in a cast iron plate, curved to the slope of the casing.