D'OUTREPONT'S VERSION 



396 



DRILL 



D'Outrepont's Version. In obstetrics, indirect version, 

 the head being seized from without by the hand cor- 

 responding to its position, while the other hand, well 

 oiled and folded together like a cone, is introduced 

 into the uterine cavity, grasps the presenting shoulder 

 and pushes it toward the side on which the breech is 

 situated. 



Dover's Powder. Pulvis ipecacuanhae compositus. 

 See Opium. 



Dowel {dow'-el) [Fr. , douille, a socket]. In dentistry, 

 the piece of wood or metal uniting any artificial crown 

 to the root of a natural tooth. 



Dowell's Operation. See Operations, Table of. 



Doyere, Eminence, Hillock, Papilla, or Tuft of. 

 See Sarcoglia. 



Dracaena (dra-se' '-nah) [Spanaiva, dragon]. A genus 

 of liliaceous plants, often tree-like. D. cinnabari 

 and D. schizantha (both E. Africa) and D. draco 

 (mainly W. African) afford a part of the so-called 

 dragon's blood of commerce. See Dragon's Blood. 



Dracol {dra'-kol). Same as Anisol. 



Dracontiasis (dra-kon-ti'-as-is) [fipanuv, dragon]. 

 Guinea- worm Disease ; a skin-disease due to the 

 presence of the fully developed nematode worm, dra- 

 cunculus medinensis, and characterized by the devel- 

 opment of deep vesicles or abscesses. The disease is 

 endemic in India and various parts of Africa and 

 other tropical regions. The female worm is cylin- 

 dric, y ff inch in diameter and about 30 inches long, 

 or even much longer. It may be felt like a cord of 

 soft string under the skin. When about to make its 

 escape it produces itching and discomfort, followed 

 by an abscess. The embryo of the worm gains en- 

 trance into the human body and there develops with 

 the named results. See Parasites {Animal), Table of. 



Dracunculus {dra- kun' -ku-lus) [dim. of draco, a drag- 

 on, serpent]. A genus of thread-worms, belonging 

 to the family Filar iidce. See Parasites {Animal'), 

 Table of. D. medinensis. See Dracontiasis. 



Draft, Draught {draff) [AS., dragon, to draw]. 1. A 

 quantity of liquid, especially a medicine drunk at one 

 gulp. 2. A mild blister ; a poultice. D., Black, 

 compound infusion of senna. D., Chopart's, a mix- 

 ture containing balsam of copaiba, alcohol, peppermint 

 water, syrup of balsam of tolu, and sweet spirit of niter. 

 D., Effervescing, one containing sodium or potassium 

 bicarbonate and a vegetable acid. 



Dragee {drah-zha') [Fr. ]. A sugar-coated pill, bolus, 

 or comfit ; a sugared confection. 



DragendorfFs Tests. See Tests, Table of. 



Dragendorff and Kossow's Test. See Tests, Table of. 



Dragon Root {drag / -on root). Indian Turnip. The 

 root of Arum triphyllum, acrid, expectorant, and dia- 

 phoretic. Dose of the fid. ext. TT^xv- zj. Unof. 



Dragon's Blood {drag'-onzblud). 1. The astringent 

 resin of Calamus rotang and C. draco, E. Indian rat- 

 tan-palms. 2. The resin of various species of Draaena, 

 q.v. 3. The resin of Pterocarpus draco, a W. Indian 

 tree. The various kinds of dragon's blood are astrin- 

 gent, but are now used mainly in the arts and in mak- 

 ing court-plasters. See Pigments, Conspectus of. 



Drain [ME., drainen, to drain]. A channel that re- 

 ceives the drainage or waste water of one building or 

 set of premises. In surgery, a material that affords a 

 channel of exit for the discharge from a wound or 

 cavity. D. -throat, a sore-throat produced by the 

 poison of scarlet fever, and other poisons introduced 

 into the system by breathing the air from defective 

 drains. 



Drainage {dran'-aj) [MY.., drainen, to drain]. I. The 

 provision, by means of tubes or strands of fibers, of a 

 channel of exit for the discharge from a wound or 



cavity. 2. See Sewage. D. Anchor, a rubber fila- 

 ment inserted in an abscess or cavity. D.-tube, a 

 rubber tube with perforations for draining wounds or 

 cavities. D.-tube, Decalcified, a decalcified bone 

 {e.g., of a chicken, etc.) used as a drainage-tube. 



Dram, or Drachm {drain) [dpaxp-ii, a Greek weight]. 

 The eighth part of the apothecaries' ounce, equal to 60 

 grains or 3.8 grams. Also the one-sixteenth part 

 of the avoirdupois ounce, equal to 27.34 grains. D., 

 Fluid, the eighth part of a fluidounce, equal to 60 

 minims. 



Dramatism {dram f -at-izm) \_6pafia, a drama]. In- 

 sanely stilted and lofty speech or behavior. 



Draper's Test. See Tests, Table of. 



Drastic {dras'-tik) [fpaeiv, to draw]. 1. A powerful and 

 irritating purgative, such as scammony or gamboge. 

 2. Severe, harsh, powerful. 



Draught {draft). See Draft. 



Draw \MYL., drawen, to draw]. To digest and cause 

 to discharge ; said of a poultice. In dentistry, to re- 

 move a tooth from its socket. In andrology, to re- 

 move the urine from the bladder by means of a 

 catheter. D. -bench, a bench for drawing wire, so 

 constructed as to confine a wire-plate at one end, 

 with a roller and windlass at the other end for draw- 

 ing the wire through the plate. 



Drawer, Gold. An apparatus for use in the dental 

 laboratory to collect gold scraps and filings. 



Drayman's Bottom. An enlargement of the bursa 

 situated over the tuberosity of the ischium. 



Dream {drem) [ME., dremen, to dream]. 1. An invol- 

 untary series of images, emotions, and thoughts pre- 

 sented to the mind during sleep. 2. To be conscious 

 of such manifestations. D., Waking, an illusion or 

 hallucination. D., Wet, a term given to the emission 

 of semen during sleep. 



Dreamy {dre'-me) [ME., dremen, to dream]. Full of 

 dreams. D. State, a common psychic aura of epi- 

 lepsy in which the patient experiences a sensation 

 of strangeness or sometimes of terror. It may be 

 associated with flashes of light or auditory aurae. 



Drechsel's Test. See Tests, Table of. 



Drechsler's Test. See Tests, Table of. 



Drench [ME., drenchen, to drench, drown]. In 

 veterinary practice, a draught of medicine. 



Drepanidium {dre-pan-id' '-e-um) [dpeTravr/, a sickle]. 

 The sickle-shaped young of certain protozoans. D. 

 ranarum, a (probably) parasitic cytozoon of frogs' 

 blood. 



Dressed Mouth {drest moivth). That condition pro- 

 duced by the fraudulent practice of filing the teeth, 

 used to make an old horse appear young. 



Dresser {dres'-er) [ME., dressen, to make straight]. 

 An attendant (in English hospitals, usually a student) 

 whose special duty it is to dress and bandage wounds, 

 and attend to other ward work. 



Dressing {dres'-ing) [ME., dressen, to make straight]. 

 I. The application of a bandage, lint, or other sub- 

 stance to a wound or ulcer. 2. The material so 

 applied. 3. In metallurgy, the mechanical treatment 

 that an ore receives after being brought to the surface ; 

 concentration. 



Dressler's Disease. See Diseases, Table of. 



Drewsen's Test. See Tests, Table of. 



Drill {dril) [AS., thyrelian, to pierce]. A surgical 

 instrument used in perforating bones, calculi, or teeth. 

 D.-bone, a flat osteoma. D.-bow, a bow and string 

 for rotating a drill-stock, effected by passing th« 

 string around it, and moving it backward and forward. 

 D. -stock, an instrument for holding and turning a 

 drill, either by the thumb and finger or by a handle. 

 D. -stock, Flagg's, an instrument for drilling into the 



