CORIARIA 



330 



CORONAL 



Coriaria (ko-re-a' '-re-ah) [L.]. A genus of poisonous 

 shrubs of several species, having a wide geographic 

 distribution. C. myrtifolia, used in dyeing and tan- 

 ning, has poisonous berries and shoots. The seeds 

 and shoots of C. sarmentosa of New Zealand afford 

 what is called toot-poison. The memory is said to 

 be impaired after recovery from poisoning by this 

 plant. Unof. 



Corium {ko'-re-um) [L. , leather]. The deep layer of 

 the cutis. 



Cork (kork ) [cortex, bark]. A substance obtained 

 from the outer part of the sub-epidermic bark of 

 certain oaks, zsQuercus ruber andQ.occidentalis, of the 

 Mediterranean region ; extensively used in pharmacy, 

 and to some extent in surgery. C.-oak. See Oak- 

 bark. C. -black. See Pigments, Conspectus of. 



Corm (korm) [nopfi6c the trunk of a tree]. The bulb- 

 ous underground part of certain plants, as the crocus. 



Cormophyte (kor '-mo-fit) [/cop/^oc, the trunk of a tree ; 

 <$>vt6v a plant] . In biology, a term formerly applied 

 to vascular cryptogams and flowering plants — to all 

 plants possessing roots, stems and leaves. 



Cormus (kor'-mus) [cormus, a tree-trunk : pi., Cormi\. 

 In biology, a colony of animals, associated " per- 

 sons." See Corm. 



Corn [cornu, horn]. A local induration and thicken- 

 ing of the skin from friction or pressure. See Clavus. 

 C. -flower. See Centaurea. C. -plaster, a thick plaster 

 worn over a corn, sometimes as a direct curative 

 agent, and sometimes to prevent pressure and friction 

 from the shoe. C.-silk, the long, thread-like styles 

 of Indian corn, gathered while still green and 

 succulent. It is used occasionally to relieve the pain 

 and spasm of chronic and subacute cystitis, and is 

 also recommended for gonorrhea, gravel, rheumatism, 

 gout, etc. Dose of the tincture % ss to j . See Zea 

 mays. C.-smut. See Ustilago. C.-starch, the com- 

 mercial name of a starch derived from maize, and 

 extensively used as an article of food, especially for 

 invalids. 



Cornalia's Corpuscles. See Bacteria, Synonymatic 

 Table of. 



Cornalian Corpuscles. See Bacteria, Synonymatic 

 Table of. 



Corne's Test. See Tests, Table of. 



Cornea [kor'-ne-ah) [comeus, horny] . The transparent 

 anterior portion of the eyeball, its area occupying 

 about one-sixth the circumference of the globe. It is 

 continuous with the sclerotic, and is nourished by lymph 

 from the looped blood-vessels at its peripheral border. 

 It is lined posteriorly by Descemet's membrane ; the 

 conjunctiva is firmly adherent to its substance in 

 front. C, Conical. See Keratoglobus. C, Leu- 

 koma of. See Leukoma. C, Tattooing of. See 

 Tattooing. C, Transplantation of, the operation of 

 engrafting a section of transparent cornea from some 

 animal into the space of an excised portion of leuko- 

 matous human cornea. 



Corneal [kor'-ne-al) [comeus, horny]. Relating to the 

 cornea. C. Reflex. See Reflexes, Table of. 



Cornein {kor'-ne-in) [corneas, horny], C^H^NjOn. 

 The skeleton of gorgonia and certain corals. 



Corneitis (kor-ne-V-tis). See Keratitis. 



Corneocalcareous (kor-ne-o-kal-ka' -re-us) [cornrus, 

 horny; calcareus, pertaining to lime]. In biology, 

 formed of a mixture of horny and calcareous substances. 



Corneosilicious (kor-ne-o-sil ish'-us) [cornrus, horny; 

 siliceus, pertaining to flint]. • In biology, applied to 

 sponges containing both horny and silicious substances. 



Corneous [kor'-ne-us) [comeus, horny]. Horny, or 

 horn-like. C. Tissue, the substance of the nails. 



Cornet (kor-net') [cornu, a horn]. A small ear-trum- 



pet worn within the auricula, and sometimes concealed 

 by the hair of the wearer. 



Comic Acid (kor'-nik). See Cornin. 



Cornicle [kor' '-nik-l) [corniculum, dim. of cornn, a 

 horn]. In biology, one of the horn-like excretory 

 ducts on the back of a plant-louse. 



Corniculum [kor-nik' -u-lum) [comicula, a little horn: 

 pi. , Cornicula~\. A small cornu or horn-like process. 

 C. laryngis, a small, horn-shaped mass of cartilage 

 on the arytenoid cartilages ; called also the Cartilages 

 of Santorini. 



Cornification (kor-nifik-a'-shun) [comeus, horny; 

 facere, to make]. The process of hardening or mak- 

 ing horny. 



Corniform {kor' -nif-orm) [cornu, a horn ; forma, 

 shape]. In biology, shaped like the horn of an ox. 



Cornin (kor f -nin) [comeus, horny]. A precipitate 

 from the tincture of the bark of Dogwood, Cornus 

 florida ; it occurs in white, silky, bitter crystals, and 

 is a tonic, stimulant, and astringent. Dose two to 

 four grains. Unof. 



Coming's Method. See Treatment, Methods of. 



Cornu (kor f -nu) [L. : pi. , Cornua~\. A horn. A name 

 applied to any excrescence resembling a horn. C. 

 ammonis, the hippocampus major of the brain. C. 

 cervi, hartshorn or ammonium hydrate. C. cuta- 

 neum, cornu humanum, a horn or excrescence arising 

 from the skin, with a deeper portion imbedded within. 

 These horns vary in shape and size, and may resemble 

 the horns of lower animals. They are solid, dry, 

 dense, smooth or corrugated, laminated or excavated on 

 the surface, often elongated and conical at the extremity. 

 In color they are white, gray, yellow, brown, or 

 black. They may be single or multiple, and may in- 

 volve any region of the body, though usually seen on 

 the scalp and face. They are likely to recur on re- 

 moval. C. humanum. See C. cutaneum. C. sacri, 

 the prominence on each bone of the sacrum. 



Cornual (kor r -nu-al) [cornu, a horn]. Relating to a 

 cornu. C. Myelitis, myelitis affecting the anterior 

 cornua of the spinal cord. 



Comuan's Operation. See Operations, Table of. 



Cornus {kor f -nus) [L.]. Dogwood. The bark of the 

 root of C. florida, with properties due to a crystalline 

 principle, cornin. It is a simple stomachic, bitter ami 

 somewhat antiperiodic. C, Fid. Ext. Dose tty 



Comutin (kor-nu'-tin). One of the poisonous 

 principles or alkaloids of Ergot. Unof. 



Coroclisis, or Corocleisis (ko-ro-kli' '-sis) [nupt/, pu- 

 pil ; ale'icic, a closure]. Pathologic closure or oblit- 

 eration of the pupil. 



Corodialysis (kor-odi-al' -is-is)[i<6p//, the pupil; dia 

 a loosening]. See Iridodia lysis. 



Corodiastasis (kor-o-di-as'-tas-is) [n6pij, the pupil ; 

 fiidaraoir, separation]. Dilatation of the pupil. 



Corolla (ko-roF-ah) [corolla, dim. of corona, a crown]. 

 In biology, the inner floral envelop. 



Corona {ko-ro'-nah) [corona, a garland]. A crown. 

 See, also, Capsula. C. ciliaris, the ciliary ligan 

 C. dentis, the crown of a tooth, q. t. C. glandis. 

 the ridge of the glans penis. C. ovariana, thi 

 centic area of tympany above the area ol di 

 in cases of ovarian tumor. C. radiata, a radi 

 mass of white brain-substance ascending from the in- 

 ternal capsule to the cortex cerebri. C. veneris, « 

 circle of syphilitic blotches occurring on tin 

 sometimes dependent upon caries or inflammation ol 

 the frontal bone. 



Coronad (kor'-o-nad) [corona, the crown; ad, to]. 

 Toward the coronal aspect of the head. 



Coronal {kor-o'-nal) [corona, the crown]. Pi 

 ing to the crown of the head. C. Intestine. 



