PHOTO-MICROGRAPHIC 



1074 



PHRENOCOLIC 



Photo-micro graphic (fo - to - mi - kro -graf- ik ) [ (pug , 

 light; fJ-iKpu:, small ; ypd(peiv, to write]. Pertaining 

 to photomicrography. 



Photomicrography (fo-to-mi-krog' '-ra-fe) \jpug, light ; 

 fiLnpog, small ; ypdipziv, to write]. The production 

 of photographs of very small or microscopic objects, 

 usually by the aid of a microscope, the photographs 

 being of sufficient size for observation with the naked 

 eye. In English this correct form is now almost in- 

 variably used, but in PVench and German the term 

 microphotography (a. v.) is more commonly used 

 with the meaning given. 



Photonosus (fo-ton' '-o-sus) \jpug, light ; voaog, disease]. 

 A diseased condition arising from continued exposure 

 to intense or glaring light, e.g., snow-blindness, etc. 



Photoparesthesia (fo-to-par-es-the' '-ze-ah) \_(pug, light; 

 napd, beside; aladrjaig, sensation]. Defective, or 

 perverted, retinal sensibility. 



Photophobia (fo-to-fo' -be-ah) \jpug, light ; <p6/3og, fear]. 

 Intolerance of light ; a symptom of inflammatory con- 

 ditions of the eye, of certain diseases of the brain, and 

 of hysteria. 



Photophobic ( fo-to-fo' -bik) [(pug, light; (pdjiog, fear]. 

 Affected with, or pertaining to, photophobia. 



Photophobophthalmia (fo- to -fo - boff- thal f - me - ah) 

 Synonym of Nyctalopia. 



Photophone (fo' -to-fon) [(pug, light ; <j>uvq, sound]. 

 I. An apparatus for the graphic representation of the 

 character of sound-waves by means of a sensitive 

 flame. 2. An instrument for the transmission of 

 sounds to a long distance by means of rays of light. 



Photophysical (fo-to-fiz' '-ik-al ) \jpug, light ; (pvoinog, 

 natural]. Pertaining to the physical effect of light; 

 opposed to Photochemic. 



Photophore (fo'-to-for)\_ (pug, light; (popelv, to bear]. 

 An instrument for examination of the cavities of the 

 body by means of the electric light. 



Photopsia (fo-top'-se-ah) \jpug, light; oijur, sight]. 

 Subjective sensations of light, as sparks or flashes of 

 fire, occurring in certain morbid conditions of the optic 

 nerve, the retina, or the brain. It may be produced 

 by sudden mechanical irritation of the eyeball. 



Photopsy ( fo'-top-se). Same as Photopsia. 



Photoptometer (fo-top-tom' '-et-er) [(pug, light; Zrty, 

 eye; fierpov, measure]. An instrument for determin- 

 ing visual acuity. 



Photoptometry (fo-top-tom'- et- re) [(pug, light ; it/;, 

 eye; fierpov, measure]. The measurement of the per- 

 ception of light. 



Photorrhexis ( fo - tor - eks' - is) . Synonym of Photo- 

 campsis. 



Photosantonin, or Photosantoninic Acid (fo-to-san' - 

 to-nin, fo-to-san-to-nitd -ik) [(pug, light ; oavrovwdv. a 

 kind of wormwood], C M H. u O fi . Sestini's name for one 

 of the products of the decomposition of santonin as the 

 result of exposure to sunlight. It occurs as quadrate 

 plates, which melt at 64-65 C, and boil at 305 C. 

 It is insoluble in cold water, slightly soluble in hot 

 water, and easily soluble in alcohol and ether. 



Phototactic (fo-to-tak'-tik) [(pug, light; rdt-ig, arrange- 

 ment]. In biology, pertaining to phototaxis. 



Phototactism (fo-to-tak' '-tizm) [6uc, light; rdaaeiv, 

 to arrange]. Same as Phototaxis. 



Phototaxis ( fo-to-taks'-is) [(pug, light ; rdtjig, arrange- 

 ment]. In biology, the assumption of a definite po- 

 sition with reference to the direction of the rays of 

 incident light, as noticed in the compass-plant (.SV7- 

 phiiim laciiiiiititm), and in the zoSspores of certain 

 plants (Protococcoidea, Ulotrichacetr, Desniideaceai). 



Phototherapeutics (fo-to-ther-ap-u' -tiks) [fug, light ; 

 Oepmrela, treatment]. A method of treating disease 

 by concentration of the rays of light through a lens. 



Local excitement, proportional to the degree of the 

 exciting cause, i. e., from a slight excitement to cau- 

 terization, may be produced in this way. 



Phototonic (fo-to-ton'-ik) [(pug, light ; rdvog, tension]. 

 In biology, exhibiting increased vital activity under 

 the stimulus of light ; the opposite of paratonic. 



Phototonus (fo-tof '-o-nus) [§ug, light ; rdvog, tension]. 

 In biology, a condition of increased vital irritability or 

 motility due to exposure to light, in contrast with the 

 rigidity or quiescence produced by darkness. 



Photoxylin, Photoxylon (fo-toks'-il-in, fo-toks' -il-oti) 

 [(pug, light; f vlov, wood] . A substance derived from 

 wood pulp by the action of sulphuric acid and potas- 

 sium nitrate. It serves as a substitute for collodion in 

 minor surgery, and as a medium for mounting micro 

 scopic specimens. 



Photuria (fo-tu' -re-ah) [$ug, light ; ovpov, urine]. Phos- 

 phorescence of the urine. 



Phoxos (foks'-os) [(po^dg, pointed]. An individual with 

 a pointed or peaked head. 



Phragma (frag'-mah) [(ppdy/na, a fence, partition: //., 

 Phragmata~\. In biology: (1) a false dissepiment in 

 a pericarp or other organ ; (2) any partition, septum, 

 dissepiment, or diaphragm. 



Phragmidiothrix (frag-mid-e-o' '-thriks) [(ppdyun , fence ; 

 ISiog, one's own; Bpit-, hair]. A name given to a 

 genus of Schizomycetes resembling the Beggiatoa. See 

 under Bacteria, Synonymatic Table of. 



Phren (fren) [(ppr/v']. 1. Diaphragm. 2. Mind. 



Phrenalgia (fren-al' -je-ah) [(ppip>, mind ; ahyog, pain] 

 Melancholia ; psychalgia. 



Phrenasthenia (fren-as-the' -ne-ah) [typrfv, diaphragm 

 or mind; dcdeveia, weakness]. Paresis of the dia- 

 phragm. Also congenital mental weakness. 



Phrenatrophia (fren-at-ro'-fe-ah)[(pp?/v, mind; arpopia, 

 atrophy]. Atrophy of the brain ; idiocy. 



Phrenesiac (fren-e'-ze-ak) [(ppfyv, mind]. One who is 

 affected with phrenesis ; an insane person. 



Phrenesis (fren-e'-sis) [(ppevr/aig, insanity ; (ppi/v, mind]. 

 Frenzy ; delirium ; insanity. 



Phrenetic (fren - et> '- ik) [(pprjv, mind ] . Maniacal; 

 delirious. 



Phreniatric (fren- e-at'-rik) [(ppr/v, mind; Jo- 

 therapeutic] . Relating to the curing of mental dis 

 orders. 



Phrenic (fren'-ik) [<ppyv, diaphragm ; mind]. 1. Per- 

 taining to the diaphragm. 2. Pertaining to the mind 

 3. A mental disease ; or a remedy for mental disease. 

 P. Artery. See Arteries, Table of. P. Nerve. 

 Nerves, Table of. 



Phrenicocolic (fren-ik-o-kol'-ik). Same as Phren* 



Phrenicogastric (fren-ik-o-gas' '-trik). Same as Ph 

 gastric. 



Phrenicosplenic (fren - ik-o - sflen' -ik) . Same s 

 Ph ren osplen ic. 



"Phr^nicnla (fren-ik'-u-lah) [(ppr)v, mind]. Brain-fever, i 



Phrenismus (fren-iz'-mus). Synonym of En, 

 it is. 



Phrenitic ( fren-it' '-ik) [(ppi/v, mind, diaphragm; trig, 

 inflammation]. Pertaining to, or affected with phren- 

 itis. 



Phrenitis (fm-i'-lis) [(ppi/v, mind, diaphragm, 

 inflammation]. I. Acute delirium ; inflammati 

 the brain, or its meninges. 2. Inflammation of tin- 

 diaphragm. P. aphrodisiaca, erotomania. P. 

 calentura, insolation. P. potatorum, delir 

 tremens. P. mania gravis. See l\ri,>nephalit 

 P. typhodes. Synonym of Fever, Cerebrospinal? 



Phrenoblabia (fren-o-bla'-beah) [<Pp>'/v, mind ; 

 hurt]. Anv disorder of the mind. 



Phrenocolic '( fren-o-kol'-ik) [opi/v, diaphragi 



colon]. Pertaining to the diaphragm and the colon. 



