Search the Dictionary

A combining form denoting relation to, or situation near or in, the ear.

A combining form from Gr. fw^s, fwto`s, light; as, photography, phototype, photometer.

Acting by the operation of both light and electricity; -- said of apparatus for producing pictures by electric light.

A cell (as one of two electrodes embedded in selenium) which by exposure to light generates an electric current.

Pert. to, or capable of developing, photo-electricity.

Electricity produced by light.

An electrometer registering by photography.

An electrotype plate formed in a mold made by photographing on prepared gelatine, etc.

To engrave by a photomechanical process; to make a photo- engraving of. -- Pho`to-en*grav"er (#), n.

The process of obtaining an etched or engraved plate from the photographic image, to be used in printing; also, a picture produced by such a process.

A disproportionately rapid growth of the upper surface of dorsiventral organs, such as leaves, through the stimulus of exposure to light. Encyc. Brit.

To engrave, or make an engraving of, by any photomechanical process involving etching of the plate.

A photo-engraving produced by any process involving the etching of the plate.

A combining form prefix signifying first, primary, primordial; as, protomartyr, the first martyr; protomorphic, primitive in form; protoplast, a primordial organism; prototype, protozoan.

Pertaining to, or designating, architecture, in which the beginnings of the Doric style are supposed to be found.

A half-tone photo-engraving.

Having, consisting of, or pertaining to, half tones; specif. (Photo-engraving),

The art or process of making photo-electrotypes. Sir D. Brewster.

That one of a series of oxides having the lowest proportion of oxygen. See Proto-, 2 (b). protoxide of nitrogen, laughing gas, now called hyponitrous oxideNO. See under Laughing.