





I. 





A 



■ 

 i \ 



the 



' miin 

 nd. 



L., 

 . m 

 , . gullet ; 



ix or 



; 



:idle of. 



if the 



i us than 



J. i. Leniti 

 : application. 

 A liniment 



• itis, 

 lai tissue of 



Emollient 

 \n emoll 



'hartic 



•I piece 

 of light. 

 L., Achromatic. 

 I. , A p. .chromatic. S( 



ndric. 



■ 



L., 



I. Bifocal. 



: tile 



L., Con- 

 I- . Crystalline, 



ivcx 



1 EN riCULAR 



the lens of the eve, situated immediately behind th« 

 pupil. L., Cylindric (either minus or plus), one 

 nacylindric tool. i. ... one with a plane sur- 

 us and a i oncave or convex surface in the 

 right angles to the first. L., Decentered, one 

 in which the optic center is nol 0] it the pupil oJ 

 the eye. L., Dispersing, a name for a concave lens. 

 L. -paper, a soft absorbent paper much used for clean- 

 ing lenses; it is also known as Japanese filter-paper. 

 L., Periscopic, one with con • 01 convexo 



-. the opposite sides being of different 

 curvatures ; it is used to avoid spheric aberration, and 

 field of clear vision; such lenses are 

 called L., Plano-concave, Plano- 



12 3 4 5 



Different Forms of Spheric Lenses. 

 i. Biconvex lens. 2. Plano-convex 3. Concavo-convex, ot 

 convergent meniscus. f Biconcave 5. Plano-concave. 

 6. Com we, or divergent meniscus. 



convex, Plano-cylindric, have a plane surface upon 

 one side and a curved surface upon the reverse side. 

 L., Prismatic, a triangular bar of "lass. L., Spheric, 

 one whose curved surface, either concave or convex, is 

 a segment of a sphere, in contradistinction to a cylin- 

 dric lens. L., Sphero-cylindric, one with a spheric 

 surface upon one side, and a cylindric surface upon the 

 reverse, used for the correction of either myopia or 

 hyperopia, associated with astigmatism. See Spectacle- 

 lenses. L.-star, the stellate figure seen on the pos- 

 terior surface of the crystalline lens. L., Test or 

 Trial, one of a set of lenses employed in determining 

 refractive errors. 

 Lenticel {len> '-tis-el) [lenticella; dim. of lens, lentil]. 

 Any one of the little mucous follicles or crypts at the 

 e of the tongue ; any lenticular gland. In biology, 

 a lens-shaped collection of cells ; applied to the dot- on 

 new hark and to certain glands. 

 Lenticellate (len-tis-el' -at) [lenticella; dim. of lens, 



lentil]. Having lenticels. 



Lenticonus [len-tik-o 1 '-nus) [lens, a lens; conus, a 



ie]. A ran-, usually congenital, anomaly of the 



, in which there is a conical prominence upon its 



rior, or more rarely upon its posterior, surface. 



Lenticula {len-tik' '-u-lah), Lenticule [len'-tik-Hl ) [I.. ; 



dim. of lens, lentil : />/., Lenticulce~\. I. Same as 



\ mass of gray matter in the brain situ- 



d in the hemicerebral wall, between the caudatum 



I the cortex. It consists of three zones known as 



articuli, all more or less striated, the ental the small- 



tal, also called putamen, the largest 



reddish-gray color than the 



twu mesal divisions, which together are termec 



bus pallidus. 3. In biology: (a) a spore-case; 



i Ileekle. 



Lenticular {len-tik' -u-lar) \lenticularis ; lens, a lentil]. 

 Pertaining! sembling, a lens; also a descrip- 



tive term applied to an instrument with a curved . m 

 tin I ! removing the rough edges of hone made 



by the trephine. L. Ganglion. See Ganglia, Tabu 

 L. Nucleus, the lenticula, q. v. 



