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Photometrician
n.
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One engaged in the scientific measurement of light.
Photometry
n.
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That branch of science which treats of the measurement of the intensity of light.
Photomicrograph
n.
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An enlarged or macroscopic photograph of a microscopic object. See Microphotograph.
Photomicrograph
n.
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A microscopically small photograph of an object.
Photomicrography
n.
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The art of producing photomicrographs.
Photophobia
n.
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A dread or intolerance of light.
Photophone
n.
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An apparatus for the production of sound by the action of rays of light.
Photophonic
a.
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Of or pertaining to photophone.
Photophony
n.
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The art or practice of using the photophone.
Photopsia
n.
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An affection of the eye, in which the patient perceives luminous rays, flashes, coruscations, etc. See phosphene.
Photopsy
n.
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Same as Photopsia.
Photorelief
n.
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A printing surface in relief, obtained by photographic means and subsequent manipulations.
Photoscope
n.
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Anything employed for the observation of light or luminous effects.
Photoscopic
a.
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Of or pertaining to the photoscope or its uses.
Photosculpture
n.
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A process in which, by means of a number of photographs simultaneously taken from different points of view on the same level, rough models of the figure or bust of a person or animal may be made with great expedition.
Photosphere
n.
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A sphere of light; esp., the luminous envelope of the sun.
Photospheric
a.
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Of or pertaining to the photosphere.
Phototonus
n.
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A motile condition in plants resulting from exposure to light.
Phototropic
a.
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Same as Heliotropic.
Phototype
n.
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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.
Phototypic
a.
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Of or pertaining to a phototype or phototypy.
Phototypography
n.
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Same as Phototypy.
Phototypy
n.
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The art or process of producing phototypes.
Photoxylography
n.
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The process of producing a representation of an object on wood, by photography, for the use of the wood engraver.
Photozincograph
n.
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A print made by photozincography.
Photozincography
n.
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A process, analogous to photolithography, for reproducing photographed impressions transferred to zinc plate.
Phragmocone
n.
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The thin chambered shell attached to the anterior end of a belemnite.
Phragmosiphon
n.
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The siphon of a phragmocone.
Phrasal
a.
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Of the nature of a phrase; consisting of a phrase; as, a phrasal adverb.
Phrase
n.
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A brief expression, sometimes a single word, but usually two or more words forming an expression by themselves, or being a portion of a sentence; as, an adverbial phrase.