FLEXURE 



265 



FOIL 



term for the relationship of the carbon to nitrogen in 

 flesh; it is, on an average, 3.24: 1. 

 Flexure. (See Illus. Diet.) F., Basicranial, the for- 

 ward bend of the embryo at the base of the skull. F., 

 Caudal, the bend at the lower portion of the embryo. 

 F.s, Cephalic, F.s, Cranial, F.s, Encephalic, cer- 

 tain bends, occurring at an early period of development, 

 in the cranial part of the embryo. F.. Diencephalic, 

 Wilder' s name for the curve in the encephalic segment 

 by which, in all mammals, birds, and reptiles, the 

 mesal portion of the prosencephalic cavity is made to 

 lie dorsad of the diencephalic cavity, instead of cephalad 

 of it, and almost on the same plane as the fishes and 

 Amphibia. F., Hepatic (of the colon), an abrupt 

 bend in the ascending colon to the right of the gall- 

 bladder at the under surface of the liver. Syn. , Flexura 

 dextra; F. prima; F. hepatica coli. F., Mesen- 

 cephalic, the chief and earliest cephalic flexure occur- 

 ring at the ventral end of the notochord, at which point 

 the medullary tube and the formative substance of the 

 walls of the cranium bend forward decidedly. Syn. , 

 F.. Crania/ (Osborn); F., Principal cephalic. F., 

 Splenic (of the colon), an abrupt turn beneath the 

 lower end of the spleen connecting the descending 

 with the transverse colon. Syn., Flexura secunda ; F. 

 sinistra; F. lienalis. F., Suprasternal, in veterinary 

 anatomy one in the colon lying upon the abdominal 

 prolongation of the sternum. 

 Flint's Arcade. See under Arcade. 

 Flint-disease. Synonym of Chalicosis. 

 Float (flot / ) [ME. floten, to float]. A label enclosed 

 in a glass capsule to float upon the surface of a fluid 

 exposed in a basin. 

 Floccilegium (flok-sil-e / -je-um) \Jloccus, a flock of 



wool ; legere, to pick out]. Carphology. 

 Floccule, Flocculus. (See Illus. Diet.) Syn., 

 Lobus tierz-i pneumogastrici. F., Accessory, the 

 paraflocculus. F., Associated, Henle's name for the 

 paraflocculus. F. secundarius, the paraflocculus. 

 Flocculi secundaria See Mediflocculus, Parafloc- 

 culus, Sitprafloccnlus. 

 Floccus. (See Illus. Diet.) F. laminosus. See 

 Flocculus ^Illus. Diet.). Flocci volitantes. See 

 Musca volitantes (Illus. Diet. ). 

 Floridins ( flor 1 '-id-ins) [flos, a flower] . Respiratory pig- 

 ments related to hemoglobin, of a violet and purplish- 

 red color, found in some of the invertebrate animals. 

 Floss (flos*) [OF. flosche, soft]. Silk which has not 



been twisted. F.-silk. See Silk (Illus. Diet.). 

 Fluate (flu* -at). See Fluorid (Illus. Diet.). 

 Fluavil '1 flu'-av-il ). C^HjjOj. A transparent yel- 

 lowish resin found with alban in gutta percha. 

 Flucticuli ( fluk-tik'-u-le) [pi. of flucticulus, a wave- 

 let]. Bergmann's name for the fine wave-like mark- 

 ings on the surface of the lateral wall of the third 

 ventricle, ventrad of the anterior commissure. 

 r luid. (See Illus. Diet.) 2. Liquid or gaseous. F., 

 >ley's. See under Coley. F., Colostric. See 

 olostrum (Illus. Diet.). F., Darby's Prophylac- 

 ic, a solution of potassium hypochlorite. F.. Haff- 

 le's Prophylactic, not a serum nor a lymph, but 

 fluid culture of pest-bacilli, grown for several weeks 

 nder conditions most favorable to the development of 

 lie toxic properties ; it is finally deprived of its infec- 

 tive quality by being heated to a temperature that is 

 ital to the living bacteria but which does not alter the 

 cific toxin (Abbott). F., Labyrinthine, the peri- 

 aph. F., Lang's Fixative and Hardening, 

 lercuric chlorid, 5 parts ; sodium chlorid. 6 parts ; 

 cetic acid, 5 parts ; water, 100 parts. F., Sub- 

 arachnoid. See Cerebrospinal Fluid (Illus. Diet.). 

 ., Van Gehuchten's Fixative and Hardening, 



consists of glacial acetic acid, 10 parts ; chloroform, 

 30 parts ; absolute alcohol, 60 parts. 



Flumen 1 riu'-men 1 [L. ; \>\. flume ua~\. 1. A flow. 2. 

 A name given by Duret to the principal cerebral fissures. 



Fluobenzene (flit-o-ben'-zen). C' 6 H 5 F. A crystal- 

 line compound of fluorin and benzene. 



Fluoborate [flu-o-bcS-rdt). A salt of fluoboric acid. 



Fluochromate yflu-o-kro> '-mat). A salt of fluochromic 

 acid. 



Fluoform (flir'-o-form). See Fluoroform (Illus. Diet.). 



Fluorescein. (See Illus. Diet.) F.-sodium, a 2% 

 alkaline solution employed in diagnosing corneal 

 lesions and in the detection of minute foreign bodies 

 in that tissue ; and is suggested as a means of diag- 

 nosing apparent death by injection of 16 gr. If cir- 

 culation remains, the mucosas will be stained yellow 

 within a few minutes. Syn., C'ranin. 



Fluorescence. (See Illus. Diet, t F. Screen, a screen 

 coated with materials which fluoresce when exposed to 

 jr-rays. 



Fluoroform. (See Illus. Diet.) F.-water. Aqua 

 fluoroformii, a watery solution (2.8 c/ c ) of fluoro- 

 form ; an odorless, tasteless, nonirritant, nontoxic 

 liquid. It is used in tuberculosis and lupus. Dose, I 

 tablespoonful 4 times daily. Syn., J-luoro/ormol. 



Fluoroformol (flu-or-o-form'-ol). See Fluoroform- 

 water. 



Fluorol {fliJ-or-oI). NaF. Sodium fluorid, an anti- 

 septic. 



Fluorometer ( flu-or-on/ -et-ur) [fluere, to flow ; uirpov, 

 a measure]. A device for adjusting the shadow in 

 skiagraphy; a localizer in x-ray examination. 



Fluoroscope ( flu'-i r-o-skop) [fluere, to flow ; oko-fIv, 

 to examine]. The device for holding the fluorescent 

 screen in x-ray examination. Syn., Cryptoscope. 



Fluoroscopy I flu-or-os / -ko-pe). The process of ex- 

 amining the tissues by means of a fluorescent screen. 



Fluoroxyl (flu-or-oks'-il). See Fpidermin (Illus. 

 Diet. ). 



Fluorphenetol {Jlu-or-fen' '-et-ol). An organic fluorin 

 compound. 



Fluorrheumin (flu-or-ru'-min). The commercial 

 name of fluorphenetol-difluoro-diphenyl, prepared as 

 an ointment and used in the treatment of rheumatism. 

 Dose, 5 gm. externally. 



Flux. (See Illus. Diet.) F., Alvine, diarrhea. F., 

 Bilious, bilious diarrhea. F.. Bloody, dysentery. 

 F., White, chronic tropical diarrhea. 



Fly. (See Illus. Diet. ) F. -fungus. See Sapfolegnia. 

 F., Telini. See Mylabris cichorii. 



Foam-liver. See under Liver. 



Focal. (See Illus. Diet) F. Depth, the capacity of 

 an objective to define objects out of focus. F. Dis- 

 tance, the distance from the center of a lens or mirror 

 to its focus. 



Foehn. A local warm, dry, southerly or southeasterly 

 wind of Switzerland, appearing with particular violence 

 in the northeastern portions of the Alps, chiefly from 

 late summer to spring. It belongs exclusively to che 

 Alps from Geneva to Salsburg, but over this region is 

 of very great climatic importance. The effect of the 

 foehn on invalids and even on healthy persons is de- 

 pressing. [Weber.] Cf. Harmattan, Khamsin, 

 Mistral, Sirocco, Simoon, Solano. 



Fogging Maneuver. In repression treatment of eso- 

 phoria, the reduction of vision to about \% by combiuir.g 

 prisms (varying with the muscular imbalance), bases 

 in, with a convex sphere ; with which combination 

 glasses the patient reads a half hour at night before re- 

 tiring. 



Foil [folium, a leaf]. A thin sheet of metal used for 

 filling teeth. F. Carrier, F. Plugger, a kind of 



