Photopsia
(Pho*top"si*a) n. [NL., fr. Gr. fw^s, fwto`s, light + sight.] (Med.) An affection of the eye, in which the patient perceives luminous rays, flashes, coruscations, etc. See phosphene.

Photopsy
(Pho*top"sy) n. Same as Photopsia.

Photorelief
(Pho`to*re*lief") n. A printing surface in relief, obtained by photographic means and subsequent manipulations. Knight.

Photoscope
(Pho"to*scope) n. [Photo- + -scope.] (Physics) Anything employed for the observation of light or luminous effects.

Photoscopic
(Pho`to*scop"ic) a. Of or pertaining to the photoscope or its uses.

Photosculpture
(Pho`to*sculp"ture) n. [Photo- + sculpture.] 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
(Pho"to*sphere) n. [Photo- + sphere.] A sphere of light; esp., the luminous envelope of the sun.

Photospheric
(Pho`to*spher"ic) a. Of or pertaining to the photosphere.

Phototonus
(Pho*tot"o*nus) n. [NL. See Photo- , and Tone.] (Bot.) A motile condition in plants resulting from exposure to light.Pho`to*ton"ic a.

Phototropic
(Pho`to*trop"ic) a. [Photo- + Gr. to turn.] (Bot.) Same as Heliotropic.

Phototype
(Pho"to*type) n. [Photo- + -type.] 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
(Pho`to*typ"ic) a. Of or pertaining to a phototype or phototypy.

Phototypography
(Pho`to*ty*pog"ra*phy) n. [Photo- + typography.] Same as Phototypy.

Phototypy
(Pho*tot"y*py) n. The art or process of producing phototypes.

Photoxylography
(Pho`to*xy*log"ra*phy) n. [Photo- + xylography.] The process of producing a representation of an object on wood, by photography, for the use of the wood engraver.

Photozincograph
(Pho`to*zin"co*graph) n. A print made by photozincography.Pho`to*zin`co*graph"ic, a.

Photozincography
(Pho`to*zin*cog"ra*phy) n. [Photo- + zincography.] A process, analogous to photolithography, for reproducing photographed impressions transferred to zinc plate.

Phragmocone
(Phrag"mo*cone) n. [Gr. a fence, an inclosure + a cone.] (Zoöl.) The thin chambered shell attached to the anterior end of a belemnite. [Written also phragmacone.]

Phragmosiphon
(Phrag`mo*si"phon) n. (Zoöl.) The siphon of a phragmocone.

Phrasal
(Phras"al) a. Of the nature of a phrase; consisting of a phrase; as, a phrasal adverb. Earlc.

Phrase
(Phrase) n. [F., fr. L. phrasis diction, phraseology, Gr. fr. to speak.]

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