MAI Y/l h 



369 



DIAPHRAGM 



substances by means of a porous diaphragm, the 

 former passing through the diaphragm into the pure 

 water upon which the dialyzer rests. 



Dialyzed [di'-al-lzd) [did, through; "kbeiv, to loose]. 

 Prepared, acied upon, or separated, by dialysis. 



Dialyzer [di'-al-lz-er) [did, through; "kbeiv, to 1 ] 



An apparatus for effecting dialysis; also the septum, 

 or diaphragm "I such an apparatus. 



Diamagnetic Bodies [di-a-mag nef-ik 6od / c- |. bodies 

 no i susceptible of being magnetized. 



Diamagnetism [di-a-mag 4 '-« t-izm) [did, ai i 



magnet]. The east and west orientation of certain 

 substances, notably antimony, copper, and gold, when 

 placed in the magnetic held. 



Diamesogamous [di-a-me-sog f -am-u [Sid, through; 

 /ikaoq, middle ; j '','"»', marriage]. In biology, applied 

 to such flowers as are fertilized hy means ol the wind, 

 water, insects, or other external agency. 



Diameter [di-am'-et-er) [did, through; fitrpov, a meas- 

 ure]. A straight line passing through the center of 

 a body or figure. D., Baudelocque's. See Baude- 

 locque. D., Bisacromial, that between the acromial 

 processes. D., Bisiliac, that between the iliac bones. 

 D. Bistrochanteric, that between the two trochanters. 

 D., Craniometric, one of several lines connecting 

 points on opposite surfaces of the cranium. The most 

 important craniometric diameters are the following : 

 Auricular ox Biauricular, connecting the centers of the 

 two external auditory meatuses ; Basilo-bregmatic , that 

 joining the basilon and the bregma ; Biglenoid, that join- 

 ing the central points of the two glenoid cavities ; Bigo- 

 Hiac, that joining the two gonions ; Bijugal, that join- 

 ing the two malar points ; Bijugular, that joining the 

 two jugular points; Bimalar, that joining the two 

 malar points ; Bimastoid, that joining the apices of 

 the mastoid bones; Biparietal, that joining the pari- 

 etal eminences ; Bistephanic, see Maximum Frontal ; 

 Bitemporal, that joining the extremities of the coronal 

 suture ; Bizygomatic, that joining the most prominent 

 points of the zygomata ; Cervico-bregmatic , that 

 joining the center of the anterior fontanel and 

 the junction of the neck and floor of the mouth ; 

 Fronto-mental, that joining the top of the fore- 

 head and the point of the chin ; Fronto-occipital, 

 see Occipitofrontal : filial, that joining the most 

 prominent points of the inion and glabella ; Maximum 

 Antero-posterior, the distance from the glabella to the 

 furthest point of the occipital bone ; Ma ximum Fron- 

 tal, that joining the stephanions ; Maximum Occipital, 

 that joining the two asterions ; Maximum Transverse , 

 the greatest transverse diameter of the cranium, where- 

 ever found ; Mento-bregmatic, that joining the chin and 

 the middle of the anterior fontanel ; Mento-frontal, 

 see Fronto-mental : Minimum Frontal, the supra-or- 

 bital line ; Occipitofrontal, that joining the root of the 

 nose and the most prominent point of the occiput ; Oc- 

 cipito-mental, that joining the external occipital protu- 

 berance and the chin ; Sagittal, see Basilo-bregmatic ; 

 Stephanie, see Maximum Frontal: Sub-temporal, that 

 joining the spheno-temporal sutures on either side of 

 the head ; Trachelo-bregmatic , see Cervico-bregmatic ; 

 Vertical Diameter, ordinarily the distance from the 

 basion to the bregma, or what is nearly equivalent, 

 the distance from the basion to the point where the line 

 through the basion at right angles to the alveolo-con- 

 dylean plane intersects the cranial vault ; but some- 

 times the line is drawn at right angles to the foramen 

 magnum. D., Deventer's. See Deventer. D., Pel- 

 vic, any one of the diameters of the pelvis. The 

 most important are the following : Antero-posterior (of 

 pelvic inlet), -that which joins the sacro-vertebral 

 angle and the pubic symphysis ; Antero-posterior (of 

 24 



pelvic outlet), see Coccypuhii ; Coccypubic, that 

 which joins the tip of the coccyx with the subpubic 

 ligament; the antero-posterior diameter of the pelvic 

 outlet; ' njugate, the antero-posterior diameter of 

 the pelvic inlet; Conjugate, diagonal, that connecting 

 the sacro-vertebral angle and subpubic ligament; 

 njugate, external, that connecting the spine of the 

 first sacral vertebra and the middle of the upper bor- 

 der of the symphysis pubis; ( . true, that 

 connecting the sacro-vertebral angle and the most 

 prominent portion of tin- posterior aspect of tin- sym 

 physis pubis ; Oblique (of pelvic inlet), left and right, 

 that connecting one sacro-iliac symphysis "ith the op 

 posite ilio-pectineal eminence; see also Deventer; 

 Oblique (of pelvic outlet), that extending from the 

 middle of the mid 1 surface of the sciatic ligament upon 

 one side to the junction of tin- ischio-pubic rami on the 

 opposite side ; Sacro-pubic, see . inter -p. 'slerior ; Sacro- 

 subpubic, see Conjugate, diagonal; Sacro-suprapu/i< , 

 that connecting the sacro- vertebral angle and the up- 

 per portion of the symphysis pubis ; Transverse (of 

 pelvic inlet), that connecting the two most widely 

 -< parated points of the pelvic inlet; Transverse (of 

 pelvic outlet), that connecting the ischial tuberosi- 

 ties. 



Diametroscopy {di-am-et-ros' -ko-pe) [didjie-poq, diame- 

 ter ; OKOTreiv, to inspect]. Observation or measure- 

 ment of diameters (as of the retinal vessels). 



Diamid {di r -am-id\ See Hydrazin. 



Diamin [di'-am-iri). See Amin. 



Diamotosis {di-am-o-to f -sis) [did, through; fwrde, 

 lint]. The packing of a wound or sore with lint. 



Diandrous {Ji-an f -drus) [die, two; ai^/i, a man]. In 

 biology; having two stamens. 



Dianoux's Operation. See Opera/ions, Table of. 



Diapason [di-ap-as' -on) [diairaaav, concord]. A tun- 

 ing fork. 



Diapedesis (di-ap-ed-e / -sis) [diarri/di/aic, a jumping 

 through]. The escape of the elements of the blood, 

 especially the white corpuscles, through the vessel- 

 wall. Also a synonym of Hematidrosis, 



Diapedetic {di-ap-ed-et / -ik\ [dia-i/di/air, a jumping 

 through]. Relating to diapedesis. 



Diaper ydi'-ap-er) [ME. , dyaper, diaper; ornamented 

 cloth], A napkin used as a T-bandage for infants 

 and menstruating women. 



Diaphanometer {di-af-an-om'-et-er). See Lactoscopc. 



Diaphanoscope [di-af-an' '-o-skop) [dtarjrni/;, translu- 

 cent ; anoirelv, to inspect]. A form of endoscope in 

 which the walls of the inspected cavity are rendered 

 diaphanous by means of an intense light. 



Diaphanoscopy [di-af-an-os' '-ko-pe) [diadavr/c trans- 

 lucent; OKtmeiv, to see]. The examination of cavi- 

 ties of the body by means of an introduced incandes- 

 cent electric light. 



Diaphanous (di-af '-an-us) [did, through ; (patveiv, to 

 shine]. Transmitting light ; translucent. D. Test. 

 See Death. 



Diaphemetric (di-af-em-et'-rik) [<ha, through ; day, 

 touch; fikrpov, measure]. Pertaining to measure 

 ments of tactile sensibility. 



Diaphoresis [di-af-o-re / -sis) [did, a part; <S>opteiv, to 

 carry]. Perspiration, especially perceptible perspira- 

 tion, or that induced by medical treatment. 



Diaphoretic {di-af-or-et'-ik) [did, a part; oopeeiv, to 

 carry]. 1. Causing an increase of perspiration ; 

 sudorific. 2. A medicine that induces diaphoresis. 



Diaphragm [di 1 ' -af-rain) [did, across ; qpd)mi, wall]. 

 I. The wall, muscular at the circumference and ten- 

 dinous at the center, that separates the thorax and 

 abdomen. The chief muscle of respiration and ex- 

 pulsion. 2. A thin septum, such as is used in 



