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Answer for the clue "A device that controls amount of light admitted ", 8 letters:
aperture

Alternative clues for the word aperture

Word definitions for aperture in dictionaries

WordNet Word definitions in WordNet
n. a device that controls amount of light admitted a natural opening in something an man-made opening; usually small

Wikipedia Word definitions in Wikipedia
Aperture was a photo editing and management computer program developed by Apple Inc. for the OS X operating system, first released in 2005, and now discontinued from the Mac App Store . The software handles a number of tasks common in post-production work ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
early 15c., from Latin apertura "an opening," from apertus , past participle of aperire "to open" (see overt ).

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Aperture \Ap"er*ture\ (?; 135), n. [L. apertura, fr. aperire. See Aperient .] The act of opening. [Obs.] An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall. An aperture between the mountains. --Gilpin. ...

Usage examples of aperture.

I hastened to the aperture, and under the crustations of coral, covered with fungi, syphonules, alcyons, madrepores, through myriads of charming fish--girelles, glyphisidri, pompherides, diacopes, and holocentres--I recognised certain debris that the drags had not been able to tear up--iron stirrups, anchors, cannons, bullets, capstan fittings, the stem of a ship, all objects clearly proving the wreck of some vessel, and now carpeted with living flowers.

There was, however, one startling difference that set this dead baobab tree apart from the others: its trunk was hollowed out and a man crouched inside, intently peering through a small aperture with a pair of binoculars.

Chapter 12 John the Baptist, the mighty prophet of Israel, strained his vision toward the last rays of sunset which leaked through the solitary aperture in his dungeon wall.

As the oleaginous matter exudes, it falls in drops through the apertures into a wide-mouthed calabash placed underneath.

When, after what seemed an eternity, I reached the shadows at the upper end of the lake I found that the river issued from a low aperture, to pass beneath which it was necessary that I compel Woola to lie flat in the boat, and I, myself, must need bend double before the low roof cleared my head.

Lieutenant Koudelka sat in the aperture, blinking dizzily, blood dripping down his chin, then was levered to his feet by a guard.

At either side of that dwarfish aperture were two more sets of windows.

Hurling myself through the aperture I reached the garden, but a hundred feet from where the black was choking the life from my Dejah Thoris, and with a single great bound I was upon him.

Great apertures, the fenestrae, occur in the cheek region of the skull, behind the eyes, and also along the sides of the snout.

Julius Lempert, who had invented the Lempert or fenestration operation, a delicate piece of surgery in which a new opening or window is bored through the mastoid bone and a new drum grafted over the aperture.

Instantly Tarzan dove headforemost through the aperture carrying the hangings of antelope hide with him to the floor below.

Leaning out of this aperture was an old woman, who was listening with interest to the conversation between Tabaea and the kilted man.

With it, he banished the synthetic aperture lidar and replaced it with a real-time forward view.

The nasal bones, together with the premaxillary and maxillary bones, form the general contour for the external apertures of the nostrils.

The hospital building itself, a VA facility of iron-colored brick and steep slate roofs, is closed and cordoned, bright pine boards nailed across every possible access and aperture, with really stern government signs about trespassing.