Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of photo is as below...

Astrophotography :: Astrophotography (n.) The application of photography to the delineation of the sun, moon, and stars..

Phototype :: Phototype (n.) A plate or block with a printing surface (usually in relief) obtained from a photograph; also, any one of the many methods of processes by which such a printing surface is obtained..

Typhotoxin :: Typhotoxin (n.) A basic substance, C7H17NO2, formed from the growth of the typhoid bacillus on meat pulp. It induces in small animals lethargic conditions with liquid dejecta..

Water Buck :: Water buck () A large, heavy antelope (Kobus ellipsiprymnus) native of Central Africa. It frequents the banks of rivers and is a good swimmer. It has a white ring around the rump. Called also photomok, water antelope, and waterbok..

Photology :: Photology (n.) The doctrine or science of light, explaining its nature and phenomena; optics..

Nonphotobiotic :: Nonphotobiotic (a.) Capable of living without light; as, nonphotobiotic plant cells, or cells which habitually live in darkness..

Heliotypy :: Heliotypy (n.) A method of transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography.

Calotype :: Calotype (n.) A method of taking photographic pictures, on paper sensitized with iodide of silver; -- also called Talbotype, from the inventor, Mr. Fox. Talbot..

Photolithographic :: Photolithographic (n.) Of or pertaining to photolithography; produced by photolithography.

Photoglyphy :: Photoglyphy (n.) Photoglyphic engraving. See under Photoglyphic.

Photographed :: Photographed (imp. & p. p.) of Photograp.

Cyanotype :: Cyanotype (n.) A photographic picture obtained by the use of a cyanide.

Photometer :: Photometer (n.) An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power..

Photographometer :: Photographometer (n.) An instrument for determining the sensibility of the plates employed in photographic processes to luminous rays.

Tithonographic :: Tithonographic (a.) Of, relating to, or produced by, the chemical action of rays of light; photographic..

Actinism :: Actinism (n.) The property of radiant energy (found chiefly in solar or electric light) by which chemical changes are produced, as in photography..

Photograph :: Photograph (n.) A picture or likeness obtained by photography.

Photoscope :: Photoscope (n.) Anything employed for the observation of light or luminous effects.

Photomagnetism :: Photomagnetism (n.) The branch of science which treats of the relation of magnetism to light.

Photophone :: Photophone (n.) An apparatus for the production of sound by the action of rays of light.

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