LACTOVEGETARIAN 



327 



LAPAROCOLOSTOMY 



Lactovegetarian (lak-to-vej-e-ta'-re-an). Consisting 

 of milk and vegetables. 



Lactucin. (See Illus. Diet.) Fine white scales 

 soluble in alcohol or 80 parts of water ; a sedative and 

 hypnotic. Dose, 1-5 gr. (O.065-O.32 gm. ). 



Lactucism (lak'-tu-sizm). Poisoning from over-dosage 

 of hypnotic preparations from species of Lactuca. It 

 is characterized by headache, dizziness, dilation of the 

 pupils, ataxic gait, and dyspnea. 



Lactyl (lak'-til). C,H 4 0. A radicle found in lactic 

 acid. L. Anhydrid. See Acid, Lactylolactic. L. 

 Guanidin. See Alacreatinin. L. Lactate. See 

 Acid, Lactylolactic. L.-imid. See Lactimid (Illus. 

 Diet.). L. -phenetidin. See Lactophenin. L.-tro- 

 pein, C g H u NO . CO. CH(OH) . CH S , obtained from 

 tropin by action of lactic acid or ethyl lactate. It occurs 

 in white needles, soluble in water, alcohol, ether, or 

 chloroform; melts at 75 ° C. A cardiac tonic. L. 

 Urea, a compound formed from a mixture of equal 

 molecules of aldehyd ammonia, potassium cyanid, and 

 potassium cyanate evaporated with hydrochloric acid. 

 It forms warty concretions or transparent crystals, 

 icuna [pi. also Lacunas]. (See Illus. Diet.) L.s, 

 Cartilage. See Cavity, Cartilage. 

 icunar. (See Illus. Diet.) 2. [L., a vault or roof; 

 pi., LacunaresX. See Valve of Vieussens (Illus. 

 Diet. ). L. orbitae, the roof of the orbit. L. ventri- 

 culi quarti, L. Vieussenii, the valve of Vieussens. 



Lacunosity i Lik-u-nos'-it-e) [lacuna, a pit]. The con- 

 dition of having pits, depressions, or spaces. 



Lacunosoreticulate (lak-u-no-so-re-tik 1 '-u-ldt) [lacuna, 

 a pit; reticulum, a network]. Both reticulate and 

 lacunose. 



Lacunule {lak-u'-niil). See Lacunula (Illus. Diet.). 



Ladaniferous [lad-an-if '-ur-us) [ladanum ; ferre, to 

 bear]. Yielding ladanum. 



Ladrerie. (See Illus. Diet.) 2. Leprosy. 3. A lep- 

 rosarium. 



Ladres {lah-dra). Lepers. 



Lagmi lag'-we). A fermented wine or liquor made 

 from the juice of the date palm by the Arabs. 



Lagneuma {lag-nu' '-mah). See Lagnca (Illus. Diet.). 



Lagocephalous (lag-o-se/'-al-us) [/ajwc, hare; KefajJj, 

 head]. Having a head like a hare. 



Laiose (li'-oz). A body found by Leo in diabetic urine 

 in certain cases and regarded by him as a sugar. It is 

 levorotary, amorphous, unfermen table, and sharp and 

 saline to the taste ; it has a reducing action on metallic 

 oxids and with phenylhydrazin forms a yellowish oil. 

 Syn., Leo's sugar. 



Lake. (See Illus. Diet.) 2. To cause to become laky; 

 to produce a rapid separation of the hemoglobin from 

 the red blood-corpuscles, 



Lalangola (lal-an-go'-lan). Synonym for Nelavan or 

 African lethargy (a. v. ). 



Lamella. (See Illus. Diet.) L. urogenitalis. See 

 L. renalis (Illus. Diet). L., Vitreous. See Mem- 

 brane of Bruch (Illus. Diet.). 

 'Lameness. (See Illus. Diet.) L., Intermittent. 

 See Claudication, Intermittent. 



Lamin. iSee Illus. Diet.) The sulfate is used 

 hypodermically as a powerful hemostatic in uterine 

 and other internal hemorrhages. 



Lamina [pi. also laminas\ (See Illus. Diet. ) 2. 

 See Lamina 1 Illus. Diet.). L. cribrosa bulbi, L 

 cribrosa oculi. See L. cribrosa (of the sclerotic; 

 • Illus. Diet. ). L., Dental, an epithelial sheet formed by 

 a flattening of the base of the dental band, from which 

 the buds forming the enamel organs of the teeth are 

 given off. L.s, Dorsal, the embryonic dorsal ridges. L. 

 elastica externa, L.. External Elastic, the innermost 

 layer of the adventitia, consisting of fibers of elastic 



tissue blending externally with the adventitia proper. 

 Syn., HenW s external elastic tunic ; External elastic 

 coat. L. elastica interna. See He/lie's Fenestrated 

 Membrane (Illus. Diet.). L., Mesenteric. See 

 Plate, Lateral Mesenteric (Illus. Diet.). L.s, 

 Muscle. See Myocomma (Illus. Diet.). L. myco- 

 gastralis, L. myxogastralis, Haeckels term for the 

 hypoblast. L., Obturator (of the third ventricle). 

 See Terma or L. cinerea (Illus. Diet. ). L. parietalis, 

 the parietal layer of a serous membrane. L.s. Pro- 

 tovertebral. See Plates, Vertebral (Illus. Diet. . L. 

 pterygoidea. See Plate, Pterygoid ( Illus. Diet.). L. 

 rostralis. See Copula (Illus. Diet.). L. Ruyschii. 

 See Choriocapillaris and Ruysch, Membrane of (Illus. 

 Diet.). L. septi lucidi, L. septi pellucidi. See 

 Hetniseptum (Illus. Diet.). L. velamentosa, the 

 organ of Corti. 



Laminiform {lam-in' -e-forni) [lamina, a layer ; forma, 

 shape]. See Laminal (Illus. Diet.). 



Laminoid (lam'-in-oid). Of Blaud, tablets of two 

 layers — one of ferrous sulfate and one of sodium bicar- 

 bonate — united by pressure. 



Lamp. (See Illus. Diet.) L., Antrum, an electric 

 lamp used for transillumination of the maxillary sinus. 

 L., Arc, a lamp producing light by means of a bow of 

 intensely hot flame between two opposed rods of car- 

 bon connected with a powerful generator of electricity. 

 L., Dobereiner's, one based upon the action of 

 spongy platinum upon a stream of hydrogen gas. L., 

 Exploring, a miniature electric incandescent lamp 

 which may be introduced into the body cavities. L., 

 Finsen, an apparatus for applying phototherapy. L. 

 (Lortet-Genoud), Lupus, an apparatus for the appli- 

 cation of the Finsen method of phototherapy. L., 

 Mignon, a very small lamp used in cystoscopy. 



Lampate (lam'-pdl). A salt of lampic acid. 



Lamprotometer (lam-pro-toni 1 '-et-ur) [/.auxporyr, bril- 

 liancy; uirpov, measure]. An apparatus for esti- 

 mating the degree of brightness of an illumination. 



Lamziekte (Jam-ze-ek 1 '-te). A lameness or nervous 

 affection of cattle, thought to be due to congestion of 

 the liver; common in South Africa. 



Lanain (lan'-a-in) [lana, wool]. Purified wool-fat. 



Lanichol (lan'-ii-ol). A proprietary preparation of 

 wool-fat. 



Laniferous (lan-if '-ur-us) [lana, wool; ferre, to bear]. 

 See Lanigerous (Illus. Diet.). 



Lanigallol (lan-i-gal'-ol). A triacetate of pyrogallic 

 acid. 



Laniol (lan'-e<-ol). A proprietary wool-fat. 



Lannaiol (lan-a-i'-ol). An iodocresol proposed as a 

 substitute for iodoform. 



Lanoform (lan'-o-form). An antiseptic preparation of 

 lanolin and I fc of formic aldehyd. 



Lanolin. iSee Illus. Diet.) L.-milk, a mixture of 

 lanolin, 10 parts; borax, 1 part; rose-water, 100 

 parts; and medicated soap, 2.5 parts. L. Powder, 

 lanolin combined with zinc oxid, carbonate of mag- 

 nesia, and starch. L., Sulfurated, thilanin. 



Lantanurate {la it -tan' -u- rat). A salt of lantanuric 

 acid. 



Lantermann's Incisions. See Incisions. 



Lanthanin flan' -than- in) [/ ax-Hd vt tr, to conceal]. Hei- 

 denhain's name for linin 12) (Illus. Diet.). 



Lanthanum. (See Illus. Diet. ) L. Nitrate, La,(N0 3 ) 6 

 -|- I2H3O, large rose-colored prisms, soluble in water 

 and alcohol ; it is a bactericide. 



Lanulous (lan'-u-lus) [lana, wool]. Covered with 

 short hair. 



Lanum </a'-tium). See Lanolin (Illus. Diet.). 



Laparocolostomy {lap-ar-o-ko-los'-to-me) [/.a-apa, 

 loin ; KU/.QI-, colon ; aroua, mouth]. Abdominal colos- 



