COMANIC ACID 



314 



COMPLEXUS 



condition in which the patient lies with open eyes, 

 but unconscious and delirious. This is occasionally 

 met with in typhoid and typhus fevers, and in deli- 

 rium tremens. 



Comanic Acid {ko-man'-ik) . See Acid. 



Comatose (ko'-mat-os) [itu/ia, a deep sleep]. In a con- 

 dition of coma. 



Combination (kom-bin-a' 'shun) [co77ibinare, to com- 

 bine] . The act of grouping or uniting ; chemic 

 union. C.-back, in the microscope, the lens-system 

 of an objective farthest from the object, composed 

 of a plano-concave of flint glass and a bi-concave of 

 crown glass, or a bi-concave and two bi-convex glasses. 

 C.-front, in the microscope, the lens-system nearest 

 the objective. 



Combustion [kom-bus' '-churi) \comburere, to burn up]. 

 The process of oxidation, attended with the liberation 

 of heat and sometimes of light. It is loosely used as a 

 synonym of inflammation. C, Spontaneous, that 

 due to heat from chemic changes, such as the spon- 

 taneous ignition of oiled waste or shoddy in woolen 

 mills, factories, etc. C, Spontaneous Human, the 

 supposed burning of the body without the external 

 application of heat. 



Comedo (kom' -e-do) [comedo, a glutton : pi., Comedones']. 

 Grubs ; Grub-worms ; Black-heads. A chronic dis- 

 order of the sebaceous glands characterized by yellow- 

 ish or whitish pin-point and pin-head sized elevations, 

 containing in their center exposed blackish points. 

 They are found usually on the face, back of the neck, 

 chest, and back, and are often associated with acne. 

 They occur as a rule in the young. Occasionally a 

 parasite, the Demodex folliciilorum, a small mite, is 

 found in each comedo. 



Comenic Acid (ko-men f -ik). See Acid. 



Comes (ko'-mez) [L,.: pi. , Comites~\. A companion, as 

 a vein or nerve to an artery. 



Comfrey [kum'-fre) [ME., cumfi,rie~\. The root of 

 Symphytum officinale, a demulcent, slightly astringent 

 and tonic drug. It is a common ingredient of domes- 

 tic cough-mixtures. Dose of the decoction indefinite ; 

 of the fid. ext. 3J-ij. Unof. 



Comma-bacillus {kom'-ah-bas-il'-us). See Bacteria, 

 Synonymatic Table of. 



Commensal (kom-en'-sal) [com, together; mensa, 

 table]. In biology, the harmonious living together of 

 two animals or plants. One of two such organisms. 



Commi (kom'-e) [ndfXfXL, a gum]. Any gum; the 

 purgative gum-resin of Exccecaria cochinchinensis, a 

 tree of Indo-china. 



Comminution {kom-in-u* 'shun) \commintttio : com- 

 7?iinuere, to break in pieces]. The process by which a 

 solid body is reduced to pieces of varying sizes. It 

 includes the various operations of cutting, rasping, 

 grating, slicing, pulverizing, levigating, triturating, 

 elutriating, granulating, etc. See, also, Fracture, 

 Comminuted. 



Commissure, Commissura (kom'-is-ur, kom-is-u'- 

 rah) \committere, to unite]. A joining or uniting 

 together. C, Anterior {of third ventricle) , a rounded 

 cord of white fibers placed in front of the anterior 

 crura of the fornix. It perforates the corpus striatum 

 on either side, and spreads out into the substance of 

 the hemispheres over the roof of the descending horns 

 of the lateral ventricles. C, Anterior White [of 

 spinal cord), a layer of fibers separating the posterior 

 gray commissure from the bottom of the aterior median 

 fissure. C, Gray [of spinal cord), the transverse 

 band of gray matter connecting the crescentic masses 

 of gray matter of each half of the spinal cord. C. 

 magna, the corpus callosum. C, Middle, a band 

 of soft gray matter connecting the optic thalami, and 



continuous with the gray matter lining the anterior 

 part of the third ventricle. C, Optic, the union and 

 crossing of the two optic nerves in front of the tuber 

 cinereum. C, Posterior {of third ventricle) , a flattened 

 white band connecting the optic thalami posteriorly. 

 C, Posterior White (of spinal cord), a band oi 

 separating the gray commissure from the bottom of 

 the posterior median fissure. Commissura brevis, 

 a portion of the inferior vermiform process of the 

 cerebellum, situated in the incisura posterior. C. 

 simplex, a small lobe on the upper surface of the 

 cerebellum near the incisura posterior. 



Common (kom'-un) [communis, common]. Belonging 

 or pertaining to all. Prostitute. C. Black. 

 Pigments, Conspectus of. 



Commotio (kom-o / she-o) [L. ]. A commotion or 

 shock. C. cerebri. Synonym of Shock. C. retinae, 

 the name given to those cases in which a depreciation, 

 or perhaps an entire loss of vision, follows a blow 

 on or near the eye. It can be explained as the 

 result of insensibility due to the same changes in the 

 retina as occur in the central organ of patients 

 suffering from concussion of the brain. 



Communicans (kom-u' '-nik-ans)\L.\ Communicating. 

 C. noni. See Nerves, Table of. 



Communication (kom-u-nik-a' shun) [communicare, to 

 communicate]. I. The transference of a contagium 

 from one person to another. 2. The channel be' 

 two or more parts. C. -plate, in biology, a perf 

 diaphragm between the zooids of a composite actin- 

 ozoon (the " Rosettenplatte " of Reichert, and the 

 Communication-pore of Smith) by means of which 

 communication is maintained between all the eel! 

 colony and between all the compartments of the stolon 

 in Polyzoa. C.-pore. See C. -plate. 



Commutator \kom f -u-ta-tor) \_commutare , to exchange]. 

 An instrument for automatically interrupting or revers- 

 ing the flow of an electric current, making and break- 

 ing it with desired frequency. See FJectric. 



Comose (ko' -7710s) [coma, hair]. Having much hair. 



Compass Plant (hum'-pas pla/it). See Rosin 



Compatibility {kom-pat-ib-W -it-e) [co/nfati, to suffer 

 with]. The property of being compatible ; suscepti 

 bility (as of different medicines) of being exhibited in J 

 the same solution with no loss of the desired effeel 

 without change in constitution. 



Compensating ifzom' -pe7t-sa-tinf) [compensare, to com | 

 pensate]. Making amends for. C. Ocular. See 0<- 

 ular. C. Operation, in ophthalmology, tenotoi 

 the associated antagonist in cases of diplopia froi; 

 paresis of one of the ocular muscles. 



Complaisance, Operations of (kom-pla-zo7igs' 

 Election. 



Complanate (kom' -plan-at) [co/nplanatu . 

 plane or level]. In biology, flattened. 



Complemental ( koni-ple-mcn' -tal) [com 

 that which completes or fills up]. Supplying a 

 ciency. In biology, forming a complement 

 female. C. Air. See Air. C. Male, one of >u 

 supernumerary males as those cirripedia (Ibla 

 lie within the sac of the female. 



Complementary {kom-ple-men' -ter-e) [com 



to fill up ; to complete] . Complemental. C. Colors. 

 See Color and /'ig/7ient. 



Completely Born (ko»i-plet'-le boni). ' 



legal medicine, this expression implies that the chii 

 must be in the world in all its parts, i. e., compli 

 external to the mother. It does not imply that the 

 centa has been separated or the cord divided. 



Complexus (kom-pleks f -us) [complcxus, com 

 totality of symptoms, phenomena, or signs ol a m 

 condition. C. Muscle. See Muscles, Table of. 



