CLARIONET-PLAYER'S CRAMP 



302 



CLEARING 



Clarionet-player's Cramp. See Cramp. 



Clark's Operation. See Operations, Table of. C. 

 (Alonzo), Sign. See Signs and Symptoms, Table of. 



Clarke's Corroding Ulcer. An ulcer of the cervix 

 uteri that shows a tendency to spread. C. Inter- 

 medio-lateral Tract. See Column of. C. Poste- 

 rior Vesicular Column. See Column of C. Pro- 

 cess. See Water, Softening of . C. Rule, a rule for 

 dosage. The dose is to be graded by the weight of the 

 child. One hundred and fifty pounds is taken as the 

 weight of an average human adult, and in order to 

 obtain the fractional dose this number serves for the 

 denominator of a fraction whose numerator corresponds 

 to the weight of the child in avoidupois pounds. Thus, 

 the formula for a child of 50 pounds would be yV° ff or 

 \ of the dose for the adult. 



Clasmacytosis [klas-viah-si-to' -sis). Same as Clasma- 

 tocytosis. 



Clasmatocyte {klas-maf '-o-sit) [KAacjia, fragment ; 

 kvtoq, cell]. A form of very large connective-tissue 

 corpuscles that tend to break up into granules or 

 pieces. 



Clasmatocytosis (klas-mat-o-si-to' -sis) [uKaaiia, a frag- 

 ment; kvtoc, a cell]. The breaking up of clasmato- 

 cytes, and the formation of islands of granules from 

 their debris. 



Clasp (Hasp) [ME., claspen, to grasp firmly]. In 

 mechanical dentistry, a hook fitted to a tooth and de- 

 signed for the retention of a dental substitute or other 

 apparatus to be worn in the mouth. In biology, an 

 apparatus at the end of the male abdomen in certain 

 insects, intended to grasp the female. C. -knife 

 Rigidity, a reflex spasmodic action of the legs from 

 increased myotatic irritability, as a result of which 

 extension is, as it were, completed with a " spring," 

 as in the knife. 



Classification (klas-if-ik-a'-shun) \_classis, a class; 

 facere, to make]. An orderly arrangement of names, 

 objects, diseases, etc., according to their properties and 

 peculiarities. 



Clastothrix (flas' -to-thriks). Synonym of Trichorrhexis 

 nodosa. 



Clathrate (klath'-rat) [n?Jjdpa, a lattice]. In biology, 

 latticed ; a name given by Mohl to cribriform cells ; 

 also written clathroid. 



Clathrocystis (klath-ro-sis' -tis) [uTirjdpa, a trellis; nvorig, 

 pouch]. A genus of microbes with round or oval cells, 

 forming zooglcese in the form of circular layers. See 

 Bacteria, Synonymatic Table of. 



Clathrose (klath' -ros) [nXydpa, a lattice]. In biology, 

 having deep furrows crossing at right angles. 



Claudication, or Claudicatio (klaw-dik-a' '-shun, 

 klaw-dik-a' -she-o) [claudicare, to halt or limp]. The 

 act of limping ; lameness. 



Claudius, Doctrine of. The doctrine that, in the pro- 

 duction of fetal monstrosities, attributes the atrophic 

 changes primarily to the reversal and impairment of 

 the circulation, consequent upon the overpowering vigor 

 of the stronger fetus. C, Cells of, the outer epithe- 

 lial layer of the ducts of the cochlea. 



Claustrophobia (klaws-trofo'-be-ah) [claustra, a bolt; 

 <p6(3o$, fear]. Morbid distress at being in any room or 

 confined space ; clithrophobia. 



Claustrum (klaios' -Irutn) [claudere, to shut : pi., Claus- 

 tra] . A barrier ; applied to several apertures that may 

 be closed agai nst entrance. Also, a layer of cinerea (gray 

 nervous matter) between the insula and thelenticula. 



Clausura (klaw-su' -rah) [L. ]. Closure; atresia; as of 

 a passage. C. tubalis, closure of a Fallopian tube. 

 C. uteri, an imperforate state of the uterine cervix. 



Clava, Clavola, or Clavolet (k/a'-vu/i, kla'-vo lah, or 

 kla'-vo-let) [clava, & club]. I. In biology, clubbed 



at the end, as the antennae of certain insects. 2. See 

 Funiculus gracilis. 



Clavate (klav'-at) [clava, a club.] In biology, club- 

 shaped. Applied to a stigma, antenna, or other organ 

 that is thick toward the apex and gradually narrowed 

 toward the base. 



Clavation (klav-a' '-shun) [clavatio ; clavus, a nail]. 

 Same as Gomphosis. 



Clavelization \klav-el-iz-a' -shun) [Fr. , clave/ee, sheep- 

 pox]. Inoculation with sheep-pox virus ; ovination. 



Claven, or Claviculen (kla' -ven, kla-vik' -u-lcn)[clavis, 

 a key]. Belonging to the clavicle in itself. 



Claviceps (klav / -is-eps) [clava, club ; caput, head], A 

 genus of fungi. C. purpurea, the fungus produc- 

 ing the ergot of rye. 



Clavicle (klav'-ik-l) [clavicula ; clavus, a key]. The 

 collar-bone. See Bones, Table of. 



Clavicular (kla-vik' -u-lar) [clavus, a key]. Relating 

 to the clavicle. 



Clavilla marginales [kla-vil' '-ah mar-jin-al'-ez) [L.]. 

 The " olfactory clubs " or marginal clubs in Medusa ; 

 also called Cordyli marginales. 



Clavula (klav'-u-lah) [clava, a club]. In biology, 

 applied to various clubbed organs ; as, a knobbed 

 bristle in echinoderms, or the swollen receptacle of 

 some fungi. 



Clavus (kla ; -vus) [clavus, a nail, a wart, a corn]. 

 Corn ; a hyperplasia of the horny layer of the epider- 

 mis, in which there is an ingrowth as well as an out- 

 growth of horny substance, forming circumscribed 

 epidermal thickenings, chiefly about the toes. Corns 

 may be hard or soft, the latter being situated between 

 the toes, where they are softened by maceration. Both 

 forms are due to pressure and friction. C. hysteri- 

 cus, a local neuralgic pain in hysteria, anemia, etc., 

 in the head, as if a nail were being driven in. 



Claw (klaw) [AS., dawn, a claw]. The stalk, or con- 

 tracted base of a petal. In biology, the hooked limb 

 or appendage of an animal. C.-hand, a condition 

 of the hand characterized by over-extension of the 

 first phalanges and extreme flexion of the others. 

 The condition is a result of atrophy of the interosseous 

 muscles, with contraction of the tendons of the com- 

 mon extensor and long flexor. (French, main-en- 

 griff e.) 



Clayed Sugars (klad sug / -arz). Sugars that have been 

 freed from the dark molasses by covering them in 

 moulds by moist clay, which allows of a gradual 

 washing and displacement of the adhering syrup. 



Cleaning (klen'-ing) [ME., clensen, to make clean]. 

 Cleansing ; removal of dirt ; purifying. C. Mix- 

 ture for Glass, I. Potassium bichromate 2 parts, 

 water 10 parts, sulphuric acid 10 parts ; dissolve the 

 potassium in the water with heat, pour into a warm 

 bottle, add the sulphuric acid slowly and at inti 

 2. Nitric acid (cone.) 2 parts, sulphuric acid 3 parts. 



Cleansings (klen' -zingz) [ME., clensen, to clean]. 

 The lochia. 



Clearer (kler'-er). See Clearing Mixture. 



Clearing (klir'-ing) [ME., cleren, to make clear]. 

 Clarification ; making clear. See Titling. C. Agent, 

 a substance used in microscopy to render tissues trans- 

 parent and suitable for mounting. To repU 

 in a dehydrated section, creusote, turpentine, xylol, and 

 the oils of bergamot, cedar, cloves, and origanum are 

 used. For celloidin sections, Bergamot or cedar oil 

 creasote is preferable. Before mounting 1 

 lions, glycerin, solution of carbolic acid, liqw 

 alcoholic solution of potash, liquor amnion: 

 of chloral hydrate, Javelle water, Labarraque's 

 tion, are used. See Stains, Tahlc of. C. Mixture, 

 a fluid used in microscopy for rendering section- 



