PACHVPTEROUS 



Pachypterous (pak-ip' '-terns) [~a^t>f, thick; uTtpov, 



wing]. In biology, having thick wings, or fins. 

 Pachyrhynchous (pak-tr-ing / -kus) [ivaxvc, thick; 

 \oc, bill, beak]. In biology, having a thick ros- 

 trum, bill, beak, or snout. 

 Pachystichous (pak-is'-tik-us) [-axis, thick; ot/joc, 



a row, line]. In biology, thick-sided. 

 Pachytes (pak'-tt-ez) [iraxiic, thick]. Thickness; 

 pachyblepharon. 



cini's Fluid. A conserving and diluting fluid used in 



unting the red blood- corpuscles. Its composition 



Mercuric chlorid 2 grams ; sodium chlorid 4 



ms ; glycerin 26 c.c; distilled water 226 c.c. To be 



luted with three parts of water before using. P.'s 



ine. See Lines, Table of. P.'s Method, a method 



performing artificial respiration, by forcibly drawing 



e shoulders upward, in the direction of the long axis 



the body, to expand the chest, and then relaxing. 



e Artificial Respiration. 



inian 1 pas-in' -e-an) [Pacini, an Italian anatomist, 

 12-1883]. Described or discovered by Pacini. P. 

 odies or Corpuscles, elliptic, semi-transparent 

 bodies, that occur along the 

 nerves supplying the skin, 

 especially of the hands and 

 feet, the external genitalia, 

 the points of the extremi- 

 ties, the periosteum of cer- 

 tain bones and many other 

 localities in man and other 

 mammals ; the so-called 

 Corpuscles of Vater, or 

 Krause^s Corpuscles. 



Pacinian Corpuscle, from 

 Mesentery of Cat. 



c. Capsules, d. Endothelial 

 lining separating the latter. 

 >t. Ntrve. f. Funicular 

 sheath of nerve, m. Cen- 

 tral mass, n' . Terminal 

 fiber ; and a. Where it 

 splits up into finer fibrils. 



Transverse Section of a Pa- 

 cinian Corpuscle from 

 Fetal Skin. 



3THELILM OF L.AMF.LL/E OF A PACINIAN CORPUSCLK. 

 (From Stirling.) 



Pack {pak) [ME., pak, pack]. A blanket wrapped 

 about the body. P., Cold, a blanket wrung out of 

 cold water and wrapped about the body. P., Dry, 

 one which is not soaked in water. P., Half, one 

 limited to the trunk. P., Hot, a blanket wrung out 

 of hot water and wrapped about the body. P., 

 Wet, a blanket wrung out of warm or cold water and 

 wrapped about the entire body or a part, and sur- 

 rounded by dry blankets. It may be used as a means 



959 PAIN 



to reduce temperature (cold pack) or to produce sweat- 

 ing (hot pack). 



Packer's Knot. See Fascia nodosa. 



Packing (pak f -ing) [ME., pak, pack]. The act of 

 filling a wound or cavity with gauze or other material. 

 P., Gauze, gauze cut in strips and used for the pack- 

 ing of cavities. P., Iodoform, a packing with gauze 

 impregnated with iodoform. 



Packwax (pak'-waks) [ME.,paxwax]. The ligamen- 

 tum nuchas of the ox. See Paxwax and Faxwax. 



Pacquelin Cautery. See Cautery. 



Pad [ME., padde, a pad]. 1. A small bag stuffed with 

 cotton, hair, etc., used as a cushion for the support 

 of any part of the body. See Liver-pad. 2. Also, 

 synonym of Compress. P. of Corpus callosum, the 

 splenium of the callosum. P., Dinner, a folded 

 towel laid over the region of the stomach in ap- 

 plying a plaster-of- Paris jacket, to give space for the 

 distention of the stomach by the food. 



Padding (pad'-ing) [ME. , padde, a pad]. The mate- 

 rial used in stuffing anything. P. of Splints, the 

 covering of the splint-board with oakum or raw cotton 

 for purposes of smoothness and to equalize pressure. 



Pae-. For words so beginning, see Pe-. 



Paedogenesis (pe-do-jen' -es-is). See Pedogenesis. 



Pagapoplexia (pa-gap-o-pleks'-e-aA). Synonym of 

 Pagoplexia. 



Pageism (pa'-jizm) [pagius, a servant]. A manifes- 

 tation of masochism in which the individual affected 

 revels in the idea of being a page to a beautiful girl. 



Pagenstecher's Ointment. An ointment used in oph- 

 thalmic practice. It consists of from one to three grains 

 of the yellow oxid of mercury to the dram of vaselin. 

 P.'s Operation. See Operations, Table of. 



Paget's Disease of the Nipple. See Dermatitis and 

 Diseases, Table of. P.'s Osteitis. See Diseases, 

 Table of. P.'s Recurrent Fibroid, the small spin- 

 dle-celled variety of sarcoma, occurring chiefly in the 

 subcutaneous tissue and sometimes in the breast. It 

 recurs in the course of many years a dozen or more 

 times, while distant parts and the lymphatic glands 

 never become infected. See Diseases, Table oft 



Pagiorrheumatism (paj-e-or-ru'-mat-izm) [-ayioq, 

 firm ; pevtiariauoc, rheumatism]. Chronic rheuma- 

 tism. 



Pagliari's Fluid. A styptic fluid composed of benzoic 

 acid and alum. It is likely to interfere with the heal- 

 ing of wounds. 



Pagoplexia (pa-go-pleks'-e-ah) \jrayoc, frost ; -'/.fj^iq, 

 stroke] . Frost-bite ; numbness due to cold. See 

 Frost-bite. 



Paidiaphtha (pa-de-af'-thah) [-diq, child; apda, 

 aphtha]. The thrush of infants. 



Paidonosology (pa-don-os-ol'-o-je) [—dig, child; voaog, 

 disease ; /.oyoc, science] The science of diseases of 

 children ; pediatrics. 



Pail (pal) [ME., pail, a pitcher]. A cylindric vessel 

 for carrying liquids. P. System. See Sewage, Dis- 

 posal of. 



Pain (fan) [ME., paint, pain]. Bodily or mental suf- 

 fering. Distressing or agonizing sensation. It is 

 usually due to irritation of a sensory nerve, although 

 there are said to be pains of central origin. P., Bor- 

 ing, severe pain in bones, of a boring character. 

 P., Electric. See P., Fulguranf. P., Fulgurant, 

 P., Fulgurating, the intense shooting, cutting pains 

 affecting principally the limbs of patients suffering 

 from locomotor ataxy. P., Girdle, a painful sensa- 

 tion as of a cord tied about the waist ; it is a symptom 

 of organic spinal -cord disease. P., Growing, a popu- 

 lar term for the soreness about the joints in young 

 persons at puberty. Some attribute these pains to in 



