SCISSURA 



1302 



SCLERODERMOUS 



are bent in such a manner that they may be applied to 

 the eyeball. Also, scissors used in iridectomy. S., 

 Perforator. See S. , Craniotomy. S., Skin-grafting, 

 an instrument consisting of a forceps and a scissors, the 

 former for seizing a small piece of skin, and the latter 

 for cutting it off. S., Uvula, one designed for re- 

 moval of the uvula. S., de Wecker's, a peculiar 

 modification of iris-scissors. 



Scissura (siz-u'-rah) \_scindere, to cut]. A fissure, rent, 

 or cleavage. S. longitudinalis, the longitudinal fis- 

 sure of the brain. 



Sclera (skle' -rah \[oiikrip6g , hard]. The sclerotic coat of 

 the eye; the firm, tough, white, outer membrane of 

 the eyeball, continuous with the sheath of the optic 

 nerve behind and with the cornea in front. S. testis, 

 the tunica albuginea of the testis. 



Scleral (skle'-ral) [cKljjpog, hard]. Pertaining to the 

 sclera. S. Extraction. See Extraction. 



Scleratitis (skle-rat-i'-tis). Same as Sclerotitis. 



Sclerectasia (skle-rek-ta' -ze-ah) [oKA7jp6g, hard ; Ik- 

 raaic, extension]. Staphyloma of the sclera. S. 

 posterioris, posterior staphyloma. 



Sclerectasis (skle-rek' -tas-is). See Sclerectasia. 



Sclerectomy (skle-rek' -to-me) \onAi]p6r, hard ; ekto^, 

 excision]. I. Excision of a portion of the sclera. 2. 

 The excision of the sclerosed and ankylosed conductors 

 of sound in chronic catarrhal otitis media. 



Sclerema (skle-re' mah) [oKArjpdg, hard]. Sclerosis, or 

 hardening, especially of the skin. S. adultorum, a 

 synonym of Scleroderma. S. neonatorum, Sclero- 

 derma neonatorum ; Induratio tela: cellulose ; a disease 

 found only in premature infants ; it is characterized by 

 a hardening of the skin, beginning in the legs, and 

 spreading, usually sparing breasts and belly. Jaundice 

 or a hemorrhagic condition may be present ; the tem- 

 perature is very low, 95 , and the condition is apt to 

 end fatally. The pathology of the disease is not posi- 

 tively known. By some the disease is believed to 

 consist in a solidification of the subcutaneous fat, 

 which in infants contains more palmitic and stearic 

 acids than in the adult, and relatively less oleic acid. 



Sclerencephalia (skle-ren-sef-a' '-le-ah) [oK?.rjp6g, hard; 

 eyKE(pa?,og, brain]. Sclerosis of brain-tissue. 



Sclerenchyma (skle - reng'- kim- ah) [on/.qpog, hard; 

 eyxv/ia, an infusion]. In biology, hard bast, or bast- 

 fibers. Used by some in a more extended sense, to 

 include all lignified fibrous cells or cell-derivatives. 



Sclerenchymatous (skle - reng - kim'- at - us) \_OKAr/p6g, 

 hard; eyxv/xa, an infusion]. Having the character 

 of sclerenchyma. 



Sclerenchyme (skle-reng'-klm) . Same as Sclerenchyma. 



Sclererythrin (skle-rer' -ith-rin) [on'Aripdc, hard ; ipv- 

 dpog, red]. A red substance obtained from ergot. 



Scleriasis (skle-ri' -as-is) \_aK.At]p6g, hard]. Induration; 

 sclerema ; scleroderma. 



Scleriritomy (skle-i-ir-it'-o-me) [onliipdc, hard, sclera ; 

 rnit?/, a cutting]. Incision of the conjunctiva, sclera, 

 and iris, followed by excision of a piece of the iris and 

 anterior capsule, in staphyloma of the cornea and 

 secondary glaucoma. 



Sclerite (skl'nf ) [aKArjp6g, rough]. In biology, a 

 separate or definite element in the exoskeleton of an 

 arthropod. 



Scleritic (skle-rit'-ik) \onlr]p6c, hard]. Sclerous. 



Scleritis (skle-ri' -tis). See Sclerotitis. 



Sclero- (sklc'-ro-) [ir/c/l^poc, hard]. A prefix denoting 

 hardness or induration, or connection with the sclera. 



Sclerobase (skW -ro-bas) [on/.r/p6g, hard; flume, base]. 

 In biology, the cornified or calcified axial connective 

 tissue of an actinozoan zoanthodeme. The hard endo- 

 skeletal portion of a colony of coral polyps, as the 

 precious red coral. 



Sclerobasic (skle-ro-ba' '-zik) [cK/.r/pog, hard ; fidaig, 

 base]. Pertaining to a sclerobase. 



Scleroblast (skle'- ro- blast) \_aiikrjp6c, hard ; (HAacrdg, a 

 germ]. In biology, a spicule-cell in sponges. 



Scleroblastic (skle-ro-blas'-tik) [on'ATipog, hard; ,3't.aa- 

 rog, germ]. Forming sclerous tissue. 



Sclerobronchiorrhoncus (skle-ro-brong-ke-or-ong'-kus) 

 [t7K?*j]p6c, hard ; {ipoyxog, bronchus; peyneiv, to snore]. 

 A dry bronchial rhonchus. 



Sclero-cataracta (skle - ro - kat - ar - ak> '- tah) [cr/cZ^pdc, 

 hard; naTapanrvg, cataract]. A hard cataract. 



Sclero-choroiditis (skle-ro-ko-roid-i'-tis)\_oK.},r]p6g, hard; 

 Xopioeidr/g, choroid ; trig, inflammation]. Conjoined 

 inflammation of the choroid and the sclerotic coat 

 of the eye. 



Sclero-conjunctival (skle-ro-kon-jnngk-ti' '-veil ) \okkj\- 

 p6g, hard; conjunctiva, conjunctiva]. Pertaining con- 

 jointly to the sclerotic coat of the eye and the con- 

 junctiva. 



Sclero-corneal (skle - ro - kor f - ne - al ) [ovc/^poc, hard ; 

 corneus, horny]. Pertaining conjointly to the sclerotic 

 coat and the cornea of the eye. 



Sclerocrissorrhonchus (skle -ro- kris - or - rong' - kits) 

 \anAi]p6g, hard ; nviacav, to crackle ; pb/neiv, to snore]. 

 A dry crackling rale. 



Sclerocrystallin (skle -ro- kris' '-tal-lin) [aK/rip6g, hard ; 

 upvora'AAog, clear ice], C 7 H 7 3 + H 2 0. A colorless 

 substance derived from ergot. 



Sclerodactylia, Sclerodactyly (skle-ro-dak-til'-e-a/i, 

 skle-ro-dak' '-til-e) \oK.7.r}p6g, hard; danrvAog, finger]. 

 A dystrophy, thus far met with in women only, and 

 characterized by a symmetric involvement of the 

 fingers, which become deformed, shortened, and 

 atrophied. The skin thickens and becomes of a waxy 

 color, and occasionally is pigmented. 



Scleroderm (skle' '- ro - derm) [aKArjpog, hard; < 

 skin ] . In biology, the calcareous skeleton of a 

 madrepore coral. 



Scleroderma (skle-ro-der' -mah) \_cn7<.iip6q, hard; dip/ia, 

 skin]. Sclerodermia ; sclerema; scleriasis; hide- 

 bound skin ; dermalo-sclerosis ; hide-bound disease. A 

 rare affection of the skin, characterized in general by 

 infiltration of its substance, followed by shrinking or 

 contraction and impairment of the secreting appara- 

 tus, resulting in a characteristic stiffness and harden- 

 ing of the integument, occurring in diffuse and sym- 

 metric forms, and spreading more or less rapidly 

 over the surface of the body, involving especially 

 the scalp, face, neck, chest, and upper limbs. Itch- 

 ing may or may not be present. The etioli 

 obscure, but the disease is evidently of nervous 

 origin. S., Circumscribed. See Morphea. S. 

 diffusa, a form confined to a particular ana. S. 

 localis, morphea ; circumscribed scleroderma. S. 

 neonatorum. See Sclerema neonatorum. 



Sclerodermatous (skle-ro-der' -mat-us) [aK?.//p6g, hr.id ; 

 dzpfia, skin] . Having a hard outer covering. 



Sclerodermia (skle-ro-der' -me-ah). See Scleroderma. 



Sclerodermic (skle-ro-der'-mik). Same as 

 atous. 



Sclerodermite (skle-ro-der' -mit ) [aKAi/p6g, hard ; i 

 skin]. In biology, a calcareous or chitinous 

 skeletal element or sclerite of an arthropod. 



Sclerodermitic (skle-ro-der - mil'- ik) [oKA>/p6g, hard : 

 d£pfia, skin; trig, inflammation]. Of the natui 

 or affected with sclerodermitis. 



Sclerodermitis (skle - ro - der - mi'- lis) [oxAr/pdg, hard ; 

 (h'pua, skin ; ing, inflammation]. An inflami 

 skin-affection, with induration of the structures 1 

 skin. 



Sclerodermous (skle-ro-der' -mus). Same as Schroder- 

 tnatous. 



