FUN I FORM 



497 



I I SIFORM 



cord of mammals or its analogue in lower animals, 



the ultimate nerve-bundles, tin- attachment of tin- 

 base of the stomach of a polyp with the bottom 

 of -its cell, the slender part of the clubbed antenna 

 of an insect, the stalk of an ovule or seed, etc. 



2. A bundle of nerve-fibers in a sheath of perineurium. 



3. A name, variously qualified, for the different 

 columns of the spinal cord and oblongata ; as the 

 F. cuneatus, F. gracilis, /*'. of Rolando, /•'. teres. 

 F. cuneatus. See Column of Burdach. F. gra- 

 cilis. See Column of G oil. 



Funiform \_fuf -nif-orm) [ funis, rope; forma, shape]. 

 In biology, resembling a rope or cord. 



Funis ( fu'-nis) [1-.]. A cord; applied to the umbili- 

 cal cord. 



Funnel ( fun' -el) [Old Yx.,fonel\ 1. A wide-mouthed, 

 conic vessel ending in a tube, designed to aid in the 

 speedy ami safe transfer of liquids from one vessel to 

 another. It is also used as a support for paper-filters. 

 2. An infundibulum. F. Mitral, a condition of the 

 mitral valve in mitral stenosis in which the left auricle 

 and the valve-structures are transformed into a hollow 

 cone. This condition is also called Button-hole Mitral. 

 F., Muscular, the funnel-shaped space bounded by the 

 four straight muscles of the eye ; its apex is at the optic 

 foramen, the eyeball forms its base, and along its axis 

 runs the optic nerve. F. -shaped Pelvis, a congenital 

 deformity of the pelvis, in which it retains its fetal or 

 funnel shape. F., Vascular, the light-hued depres- 

 sion at the center of the disc of the retina ; if exag- 

 gerated, it forms a so-called physiologic cup. 



Funny Bone {fun'-e don). The internal condyle of the 

 humerus. Being crossed superficially by the ulnar 

 nerve, blows upon it give an unpleasant sensation to 

 the hand ; whence the name. 



Fur [MJL.,furre, fur]. A coating of morbid matters, 

 including an increased amount of epithelium, seen 

 upon the tongue in various conditions of disease. 



Furan {fur' -an) [furfur, bran], C 4 H 4 0. Furfuran ; 

 tetrol ; a product of the destructive distillation of pine- 

 wood ; it is also produced synthetically by the dis- 

 tillation of pyromucic acid. It is a liquid, insoluble 

 in water, with a peculiar odor, and boiling at 32 C. It 

 yields bluish-violet dyestuffs with isatin and sulphuric 

 acid, and violet-red with phenanthraquinone. 



Fvirbringer's Method. A method of cleansing the 

 hands and nails of operators. The hands and forearms 

 having been thoroughly cleansed by scrubbing with 

 soap and warm water and the nails carefully cleansed, 

 the hands and forearms are dipped for at least a min- 

 ute in absolute alcohol, then immediately into warm 

 bichlorid of mercury solution (I : 1000) and well 

 scrubbed with a nail-brush, the nails receiving partic- 

 ular attention. 



Furca {fur' -kali) [L.,a fork]. A fork. F. orbitalis, 

 the orbital fork ; one of the earliest signs of the 

 orbit seen in the embryo; it is a mere trace of bifur- 

 cated bony tissue. 



Furcate ( fur'-kat\ [furca, a fork]. In biology, 

 forked ; divided into two equal branches. 



Furcula {fur'-ku-lah) [L., dim. of furca, a fork]. In 

 biology, applied to various forked structures, as the 

 united clavicles (wish-bone or merry-thought) of a 

 bird, or the bifid processes of certain insects. 



Furfur {fur* -fur)[£,.']. I )andruff or perrigo ; scurf; the 

 bran of flour. F., Microsporon. See Tinea versicolor. 



Furfuraceous {Jur-fur-a' -she-us) [ furfur, bran]. Re- 

 sembling bran. Applied also to dandruff- covered skin. 



Furfuran {fur'-fu-ran). See Furan. 



Furfurin {fur'-fu-ri,n {furfur, bran], C 15 H 12 N 4 O s . 

 A basic crystalline principle derivable from furfurol ; 

 it has been proposed as an antipyretic and tonic remedy. 

 S 2 



Furfurol { fur' -fu-rol ) [furfur, bran; oleum, oil]. 

 I 1 1 ,< ),. The aldehyd of furfuryl alcohol is produced 

 in the distillation of bran with diluti I I.-'),, or of 

 sugar, etc. It is also derived from arabinose or xylose 

 and occurs in the decomposition-products of albumi- 

 noid bodies, as meat, 1 beese, urine, etc. With phenyl- 

 hydra/in it forms a nearly insoluble compound, fur- 

 furol hydrazon. It is a colorless volatile oil, with an 

 aromatic odor. In specific gravity at 130 C. is 1.11 

 It boils at 162 C. It combine-, with dimethylanilin 

 to form a green dye-stuff, corresponding to malachite 

 green. It exists in certain new whiskies; but as the 

 spirit becomes older the furfurol gradually disappears. 



Furibund 1 fu' re-6itnd)[furi6undus,ragirig~\. Raging; 

 maniacal (applied to certain insane patient 



Furor {Ju'-ror) [E]- Madness; fury; a maniacal 

 attack. F. genitalis. Same as Erotomania. F. 

 epilepticus, epileptic insanity. F. transitorius. 

 See Mania, Transitory. F. uterinus. See Nym- 

 phomania. 



Furred ( fur J 1 [ M E. , furre, fur]. Having an abnormal 

 coating of granular or epithelial scales and other mat- 

 ter ; as a furred tongue. 



Furrow ( fur'-o) [ME., furwe, a groove]. A groove 

 or trench. F., Auriculo-ventricular, the great 

 transverse groove separating the auricles of the heart 

 from the ventricles. F., Digital, one of the trans- 

 verse lines or furrows on the palmar surface of the 

 fingers. F., Genital, a groove appearing on the 

 genital tubercle of the fetus at the end of the second 

 month. F., Interventricular, two longitudinal 

 grooves separating the two ventricles of the heart. 

 F., Jadelot's. See fadelot's Lines, or Furr. 



Furrowing {fur'-o-ing) [ME., furwe, a groove]. In 

 biology, the process of segmentation of the yolk of an 

 egg in some animals, as Amphibia. 



Furuncle {fu'-rung-kl). See Furunculus. 



Furunculosis ( fit-rung- ku-lo' '-sis) [furunculus, a 

 boil]. The morbid condition that is associated with 

 the production of furuncles. 



Furunculous ( fit-rung* '-ku-lus) [furunculus, a boil]. 

 Characterized by a continuous production of furuncles. 



Furunculus ( fit-rung* '-ku-lus) [L.]. A boil. A local 

 inflammatory affection, commonly involving a skin- 

 gland or hair follicle, ending in necrosis and central 

 suppuration of adjacent parts. It begins with painful 

 induration, followed by swelling, finally suppu- 

 rating and sloughing at the " core." F. orientalis, 

 Oriental Boil, Aleppo Boil, Delhi Boil, Biscara But- 

 ton, Gafsa Button, Kandahar Sore. Pendjeh Sore, 

 Natal Sore. A local disease, marked by the succes- 

 sive formation of papule, tubercle, scab, and sharply 

 circumscribed ulcer on the face, especially the cheeks 

 and angle of the mouth. It is common along the 

 shores of the Mediterranean Sea. 



Fuscescent ( fuses' '-ent)[fuscus, dusky]. In biology, 

 of a dark-brownish tinge. 



Fuscin (fusS-in) [fuscus, dark]. Retinal melanin. A 

 pigment found a< minute granule.- imbedded in the 

 cell-substance and processes of the retinal epithelium. 



Fuscoferruginous (fus-ko-fer-oo* '-jin-us) [fuscus, 

 dark; ferruginous, rusty]. Brownish; rust-colored. 



Fuscotestaceous 1 fits-ko-tes-ta' '-she-us) [fuscus, dark. 

 dusky; testaceus, brick-colored]. Dull reddish-brown. 



Fuscous {fits'- kits) [fuscus, dusky]. Grayish-brown. 



Fusel Oil ( fit'-zel ). See Alcohol. 



Fusible ( fu'-zib-i) [fusus, melted]. That which may 

 be fused or melted. F. Calculus. See Calculus. 



Fusiform ( fu' -si form) [fusus, a spindle ; forma, 

 shape]. Spindle-shaped; larger in the middle and 

 diminishing in diameter toward either end ; applied tc 

 cells, fibers, etc. 



