

CONTUSION 



321 COOPER'S ARSENTOUS OINTMENT 



experiment carried out under normal or common cir- 

 cumstances or conditions, to serve as a standard where- 

 by to test the variation or value of another experi- 

 ment carried out under peculiar or abnormal circum- 

 stances. For instance, an animal is rendered immune 

 by inoculation with some anu-specific agent. Such an 

 animal is called the Immune Animal. Another 

 animal, not having been previously rendered immune, 

 is called the Control Animal. Both animals are 

 then exposed to the action of, or are inoculated with, 

 the specific virus in question, and the relative differences 

 in the reaction of the two animals to the last inocula- 

 tion or exposure constitute the conclusions of the 

 experiment. 



mtusion (kon-tu' -zhun) [contusio ; contundere, to 

 bruise]. A bruise or injury by a blunt weapon, or by 

 collision, without breaking the skin or covering C- 

 pneumonia. a form of pneumonia following trauma- 

 tism. It is of frequent occurrence. 



i [kuvoc, a cone: //. , Coni\. A cres- 

 centic patch of atrophic choroid tissue near the optic 

 papilla in myopia. C. arteriosus, the conoid eminence 

 of the right ventricle of the heart, whence arises the pul- 

 monary artery. C. medullaris, the cone-like termina- 

 ion of the spinal cord, continuous as the filum ter- 

 ninale. Coni vasculosi, a series of conical masses that 

 ogether form the globus major of the epididymis. 

 nvalescence (kon-val-es' '-ens) [convalescere, to be- 

 come well]. A term applied to the restoration to 

 health after the subsidence of a disease or ailment, 

 invalescent (kon-val-es / -ent) [convalescere, to be- 

 come well]. I. One recovering from a sickness. 2. 

 Recovering from sickness. 



I nvallamarin (kon-val-am f -ar-in) [convallis, a 

 • alley ; amarus, bitter] , CjjH^O^. A bitter, crystal- 

 line whitish powder; a glucosid derived from Conval- 

 aria. It is a rather active poison. See Convallaria 

 majalis. 



Cnvallaria (kon-val-a' '-re-aK) [convallis, a valley]. A 

 enus of liliaceous plants. C. majalis, Lily of the 

 alley. All parts of the plant are used in medicine. 

 :s properties are due to convallarin, C^HgjOjj, and 

 ■nvallamarin, C 23 H 44 ]2 , glucosids. It is a prompt 

 lthartic, diuretic, and cardiac stimulant, valuable as 

 heart-tonic. Unlike digitalis, it has no cumulative 

 ifect. C, Ext., soluble in water. Dose gr. ij-x. 

 ., Ext., Fid., alcoholic. Dose It^ ij-xj. C. infusum, 

 i epared with three times its weight of water. Dose 

 Convallamarin, or Convallamarinum, is 

 luble in water. Dose gr. j£-ij. All unof. 

 C.vallarin \kon-val'-ar-in) [convallis, a valley], 

 (HjjO,,. A purging, crystalline glucosid derived 

 im Convallaria. 

 C vallarrhetin {kon-val-ar-e' -tin) [convallis, a valley ; 

 <«7, resin], C,.H 5 .,0 6 . A poisonous resiniform sub- 

 nce obtainable from convallarin upon the separation 

 -e from the latter. 

 -' vection (kon-vek' '-shun) [convehere, to carry to- 

 ner]. A transmission or carrying, as of heat or 

 ctricity. C. -current, a current of a liquid or gas 

 ited to a temperature above that of the surrounding 

 dium ; it rises to the surface because of its lighter 

 isity, and thus the entire fluid or gas acquires the 

 ie temperature. 

 Jc ergence i h n-ver'-jens) [convergere, to tend to a 

 ' ter]. Inclination or a direction toward a common 

 1 nt, center, or focus, as, e.g., of the axes of vision 

 >n the near-point. C.-theory, a theory that ac- 

 i nts for the production of -myopia by the pressure 

 jj rted by the external ocular muscles upon the eye- 

 in convergence, this pressure leading to distention 

 A he eyeball. 

 1 21 



Convergent (kon-ver* -jent) [con, together; vergere, to 

 incline]. In biology, coming together. Tending to 

 a common center. C. Strabismus. See Strabismus. 



Convex (kon-veks') [convexus, vaulted]. Rounded, as 

 a swelling of a round or spheric form on the external 

 surface ; gibbous ; opposed to concave. 



Convexity {kon-veks* '-it-e) [convexus, convex]. A 

 surface rounding outward ; the quality of being con- 

 vex. 



Convexo-concave and Convexo-convex (kon-veks'- 

 o-kon-kdT, kon-veks' '-o-kon-veks). See Lens. 



Convolute [kon' -vo-lut) or Convoluted (kon'-vo-lu- 



. ted) [convolutus, rolled together]. Rolled together. 

 C. Bones. See Turbinated Bones. 



Convolution (kon-vo-lu' -shun) [convolvere, to roll to- 

 gether]. A folding and turning upon itself of any 

 organ, as the cerebrum and the small intestines; 

 any gyrus of the brain. A Table of the Convolutions 

 of the Cerebrum is added. (See page 323.) 



Convolvulin (kon-vol' -vu-liri) [convolvere, to roll to- 

 gether], CjjH^Ojj. A glucosid derived from the 

 roots of Jalap ( Convolvulus purgd) . It is a gummy 

 mass, with active purgative properties. 



Convolvulus {kon-vol' -vu-lus) [convolvere, to roll to- 

 gether]. A genus of plants. C. panduratus, wild 

 potato. The tuber is a mild cathartic. Dose gr. xl. 

 Unof. C. purga. See Jalap. C. scammonia. 

 Scammony. 



Convulsant (kon-vul' -sant) [convellere, convulsum, to 

 pull together]. A medicine that causes convulsions. 



Convulsion (kon-vul' -shun) [convellere, to convulse]. 

 A general paroxysm of involuntary muscular contrac- 

 tion, whether tonic or (more especially) clonic. 

 Loss of consciousness and voluntary control of the 

 muscles, with clonic, tonic, or mixed contraction, etc. 

 It may be due to epilepsy, other functional or or- 

 ganic disease of the brain, circulation, etc. ; or may 

 be cataleptic, hysteric, choreic, etc. See, also, 

 Epilepsy. C, Infantile, due to a number of causes, 

 such as rickets, exhaustion, etc. ; sometimes called 

 " screaming fits. " C, Puerperal. See Eclampsia. 

 C, Salaam, Eclampsia nutans, q.v. C, Uremic, 

 due to the altered state of the blood in disease of 

 the kidney. 



Convulsionary (kon-vul' ' -shun-a-re) [convellere, to con- 

 vulse]. One who is subject to convulsions ; especially 

 one of a set of patients who are subject to epidemic 

 or imitative convulsions. 



Convulsivant (con-vul'-siv-ant) [convellere, to con- 

 vulse] . An agent that causes convulsions. 



Convulsive (kon-vul' -siv) [convellere, to convulse]. 

 Marked by convulsions or spasms. C. Cerebral 

 Typhus. See Dubini s Disease. C. Cough. See 

 Cynobex kebetis. C. Tic. See Habit-Spasm. C. 

 Tremor. See Paramyoclonus. 



Conydrin (ko-ni' -drin) . See Conhydrin. 



Cook's (Alleyer) Hematoxylin Solution. A solu- 

 tion for staining microscopic sections. Extract of log- 

 wood 6 gm. , alum 6 gm. , cupric sulphate 1 gm. , and 

 water, 40 c. c. are rubbed up into a paste in a mortar. 

 This is allowed to stand for two days, and then filtered, 

 and a crystal of thymol is added to the filtrate for 

 preserving. See Stains, Table of. 



Cooper's (Sir Astleyi Arsenious Ointment. An oint- 

 ment composed of arsenious acid and sulphur, each one 

 part, spermaceti cerate, eight parts. It has been used 

 as a local application in skin-affections. C. Fascia. 

 See Scarpa 1 s Fascia. C. Hernia. See Hernia, and 

 Diseases, Table of. C. Irritable Breast. Synonym 

 of Mastodynia. C. Irritable Testicle. Synonym 

 of Orchialgia. C. Ligaments. See Ligaments. C. 

 Method. See Treatment, Methods of. C. Operations. 



