MEMBRANEOUS 



the neurilemma, q. z: M., Tympanic, the mem- 

 brane separating the external from the middle ear. 

 It consists of three layers : an ectal or skin layer, a 

 fibrous layer, and an ental layer like that lining 

 the middle ear. M., Undulator, a delicate mem- 

 brane uniting the spinal filament to the body and 

 tail of the spermatozoon. M., Utero-epichorial, 

 the decidua vera. M., Vascular (of the eye), the 

 choroid, q. v. M., Vestibular. Same as M. of 

 M., Virginal, the hymen, q. 7: M., Vi- 

 tellary, M., Vitelline, the true cell-membrane of 

 the ovum, lying within the zona pellucida. M., 

 Vitreous, the membrane of Descemet ; also the 

 inent membrane of a hair-follicle. M., Wachen- 

 dorf 's, the papillary membrane. M., Yolk. Same 

 as J/., Vitelline. M., Zinn's. See Zonule of Z 'inn. 



Membraneous (mem-bra' -ne-us). See Membranous. 



Membraniform (mem-bra n f -if-orni). See Membranous. 



Membranine (mem'-bran-in). See Membranous. 



Membrano-carneous (mem-bran' '-o-kar' '-tie- us) \_mem- 

 brana, membrane; caro, flesh]. Of a membranous 

 and fleshy structure. 



Membranocranium (mem-bran-o-kra' -ne-um) [mem- 

 bran 1. membrane; k/mviov, skull]. The membran- 

 ous skull of the fetus, prior to ossification. 



Membranogenic (mem -bran- o-jen'-ik) [fiEu3pdva, 

 parchment membrane; ; f vijc, producing]. In biology, 

 having a tendency to form a membrane or a mem- 

 branous growth. 



Membranoid (mem-bran-oid') [membrana, membrane ; 

 , like]. Resembling membrane. 



Membranology (mem-bran-ol' -o-je) [niembrana, mem- 

 I brane ; toyoc, science]. The anatomy, physiology, 

 ! and pathology of the membranes of the body. 



Membranosus (mem-bian-o'-sus) \tnenibrana, mem- 

 I brane]. Membranous. M., Semi-, one of the 

 hamstring muscles. See Muscles, Table of. 



Membranous (mem'-bran-us) [membranosus, mem- 

 branous] . Having the nature of, or characterized by, 

 a membrane. In biology, applied to an organ or part 

 that is flattened, thin and flexible. M. Labyrinth. 

 Labyrinth. M. Urethra, the part of the urethra 

 between the two layers of the triangular ligament. 



Membranula, Membranule (mem-bran' -u-lah , mem- 

 bran' -iil\ [dim. of membrana, membrane]. A 

 small membrane. In biology, specifically applied to a 

 portion of the wing of certain insects. 



Membranulet (mem-bran' -u-let). Same as Membran- 

 ula. 



Membrosus (mem-bro'-sus) \jnembrum, limb]. Hav- 

 ing a large penis. 



Membrum (mem' -brum) [L. : //., Membra - ]. Same as 

 Member. M. muliebre, the clitoris. M. seminale, 

 M. virile, the penis. 



Memory yrnem'-o-re) [memoria, a recalling]. That 

 1 faculty of the mind that enables one to recall ideas, 

 events, and the images of objects that have produced 

 sensation. M., Loss of. See Amnesia. 



Menagogue {men'-ag-og\ Svnonvm of Emmena- 



Menatechenzie (men-at-ek-en'-ze). See Palmus. 



Mendel's Convolution. See Convolutions, Table of 



Mendelejeff 's Classification. See Element. 



Mendosus (men-aW-sus) [menda.v, false]. False ; ap- 

 plied to certain incomplete parts, as the floating ribs. 



Menelcosis 1 men-el-ko' -sis) \jifjvtq, menses ; e/.Kuaic, 

 ulceration]. Ulceration of the leg, with vicarious 

 menstruation from the sore. 



Menellipsis ( men-el-i//-sis) [urji-ec, menses; e'//.eifir, 

 a falling off]. Menopause. 



Menes (men'-ez) {ut/vec, menses]. Menses. 



Menhaden Oil (men-ha'-dn) [a corruption of the In- 



13 



MENINGO CEPHALITIS 



dian munnawhatteaug]. An oil obtained from the 

 Alosa menhaden, a kind of herring. It is used in 

 soap-making and in tanning, and, when pure, as a sub- 

 stitute for cod-liver oil. 



Menhidrosis, Menidrosis (tnen-hid-ro f -sis, men id- 

 rof-sis) [uijvec, menses ; Idfxjoic, sweat]. A form 

 of vicarious menstruation said to consist in monthly 

 excess of sweat, sometimes sanguineous, instead of 

 the menstrual flow. 



Meniere's Disease. A disease or injury probably of 

 the semicircular canals, characterized by nausea, vom- 

 iting, vertigo, deafness, tinnitus aurium, and other 

 phenomena. It is called . also aural or auditory ver- 

 tigo. See Diseases, Table of. 



Meningarthrocace (men-in-gar-throk / -as-e) [uijvr/l;, 

 membrane ; apfipov, joint ; Kan6c, evil]. Inflamma- 

 tion of joint-membranes. 



Meningeal (men-in'-Je-al) [uiywyf , membrane]. Per- 

 taining to any membrane of the brain or myel, especi- 

 ally the dura. 



Meninges (meti-itt'-jez) [pi. of fiyviy!;, membrane]. 

 A name applied to the membranes of .the brain and 

 myel, the dura, pia, and arachnoid. M., Lepto-, the 

 pia and arachnoid. 



Meningina (men-in-ji'-nah) [fiijviy!;, membrane]. The 

 pia and arachnoid considered as the proper meninges, 

 and apart from the dura ; the pia-arachnoid. 



Meninginitis (men-in-jin-i' -tis) [/M/wyf , membrane ; 

 trie, inflammation]. Inflammation of the meningina; 

 leptomeningitis. 



Meningitic (men-in-jit'-ik) \jtijvry!;, membrane]. Per- 

 taining to, or affected with, meningitis. 



Meningitis (men-in-ji'-tis) [fitji'iy^, membrane; trie, 

 inflammation]. Inflammation of the membranes of 

 the brain or cord ; that of the dura is termed pachy- 

 meningitis, that of the pia-arachnoid, leptomeningi- 

 tis. M., Acute. See Leptomeningitis. M., Ascend- 

 ing, a form that begins in the membranes of the 

 lower cord and ascends. M., Basilar. See M., 

 Tuberculous. M., Cerebral, M., Cerebro-spinal, a 

 form affecting the membranes of the brain, and those of 

 the cord and brain respectively. It is usuallv epi- 

 demic. M. of the Convexity, simple leptomeningitis. 

 M., Epidemic. Synonym of Fmer, Cerebro-spinal. 

 M., Granular, the same as M., Tuberculous. M., 

 Malignant. Synonym of Fez>er, Cerebrospinal. 

 M., Rhachidian. Synonym of M., Spinal. M., 

 Scrofulous. See J/., Tuberculous. M., Septic, that 

 due to an infectious process. M. siderans. a ful- 

 minant, rapidly fatal form of cerebro-spinal fever. 

 M., Simple, that not due to tuberculosis or sepsis. 

 M., Spinal, meningitis of the membranes of the spinal 

 cord. M., Syphilitic, meningitis due to syphilis. 

 M., Traumatic, that following injury to the skull or 

 spinal column. M., Tuberculous, inflammation of 

 the pia of the brain, with effusion of lymph and pus, 

 caused by the deposit of miliary tubercles upon its 

 surface or into its substance. M., Typhoid. Syn- 

 onym of Fever, Cerebro-spinal. 



Meningitophobia (men-in-git-o-fZ-be-ah) [utjvtyZ, 

 membrane ; trie, inflammation ; 00 3oc, fear]. An 

 exaggerated fear of meningitis when the disease is epi- 

 demic, sometimes leading to the development of the 

 symptoms of the disease. 



Meningocele (men-in'-go-sll) [u^viyE, membrane ; «7?-7, 

 tumor]. A tumor composed of cerebral or spinal 

 membranes containing fluid, and perhaps nerve-tissue, 

 protruding from an anomalous opening in the cranium 

 or spinal column, usually covered by skin, but some- 

 times exposed by cutaneous defect. 



Meningo-cephalitis (men-m'-go-sef-al-i'-tis). See 

 Meningo-encephalitis . 



