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Film
(redirected from plain film)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
film
1. 
a. a sequence of images of moving objects photographed by a camera and providing the optical illusion of continuous movement when projected onto a screen
b. a form of entertainment, information, etc., composed of such a sequence of images and shown in a cinema, etc.
c. (as modifier): film techniques
2. a thin flexible strip of cellulose coated with a photographic emulsion, used to make negatives and transparencies
3. Pathol an abnormally opaque tissue, such as the cornea in some eye diseases

film [film]
(biology)
A thin, membranous skin, such as a pellicle.
(electricity)
The layer adjacent to the valve metal in an electrochemical valve, in which is located the high voltage drop when current flows in the direction of high impedance.
(graphic arts)
Plastic material, such as cellulose acetate or cellulose nitrate, coated with a light-sensitive emulsion, used to make negatives or transparencies in radiography or photography.
(materials)
A flat section of material that is extremely thin in comparison to its other dimensions and has a nominal maximum thickness of 250 micrometers and a lower limit of thickness of about 25 micrometers. Also known as self-supported film.
(medicine)
A pathological opacity, as of the cornea.
(metallurgy)
Oxide coating on a metal.

film
A layer of one or more coats of paint or varnish covering an object or surface.

Film 

a series of sequential photographic images, or frames, associated with a single subject and intended for reproduction on a screen.

In modern cinematography, the following classifications of films are used: feature motion pictures, television films, animated cartoons, newsreel and documentary films, scientific films, educational films, and amateur films. Other classifications correspond to thematic content (historical and adventure films and comedies), cinematographic and projection techniques (silent, sound, black-and-white, color, wide-screen, large-format, panoramic, stereoscopic, and multiscreen films), and projection duration (full-length and short films). Special-purpose films include microfilms, test films, advertising films, and souvenir films.

Most films are produced at specialized motion-picture studios by groups of artistic workers and technical specialists, who use a variety of cinematographic equipment while filming on the studio sets and on location. Films for scientific, technical, and educational purposes are often produced in the motion-picture laboratories of research institutes and educational institutions. Amateur films are usually made in amateur motion-picture studios at clubs, educational institutions, and enterprises, as well as by individual amateurs.

E. A. IOFIS



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Plain films demonstrate a well-defined or lobulated soft-tissue mass, and as many as one-third of cases exhibit punctate calcification.
The center's level 1 trauma center has 779 beds and performs as many as 340,000 procedures annually, ranging from plain film radiography to CT and complex interventional procedures.
Plain films will reveal unruptured pulmonary cysts as rounded masses of uniform density, while ruptured cysts result in complex cavitary lesions with variable radiographic features, which include an air-fluid level, a floating membrane (water-lily sign), a double wall, an essentially dry cyst with crumpled membranes (serpent sign, rising sun sign) or an empty cyst.
 
 
 
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