

PILEWORT 



1101 



PILULA 



cm 





is also applied to the cap-like or umbrella-like summit 

 of the stipe of many fungi. The hymenium-bearing 

 portion is the same as cap. P. hippocraticus, the 

 capeline bandage. 



Pile wort (pil'-wert). See Ficary. 



Pili pi'-ti) [pilns, a hair]. Hairs. P., Congenital, 

 hair existing at birth. P., Post-genital, that appearing 

 some time after birth. 



Piliation (pil-e-a'-shun) [pilus, hair]. The formation 

 and production of hair. 



Pilidium i pil-id' -e-uni) [iriTudiov, a little hat or cap]. 

 In biology : (i) A free-swimming, helmet-shaped larva, 

 occurring among the Nemertina. It holds a position 

 intermediate between the young Turbellarian larva of 

 ie Polyclada (cf. Mullet's Larva) and the typical 

 "rochophoran Larva. (2) A hemispheric apothe- 

 cium in certain lichens. 



Piliferous \J>i-lif'-er-us) [pilus, a hair ; ferre, to bear]. 

 In biology, bearing a slender bristle or hair, or beset 

 with hairs. P. Cyst, a dermoid cyst. 



Piliform (pi'-liforni) [pilus, hair; forma, a form]. 

 Having the form or appearance of hair ; filiform. 



Piligerous (pi-li/ v -er-us)[ pilus, hair; gerere, to carry]. 

 Piliferous ; covered with hair. 



Pilimiction (pi-lim-ik'-shun) [pilus, hair ; mingere, to 

 urinate]. The passing of urine containing hair-like 

 filaments. 



(pil) [ME., /*'//<-, pill]. See Pilula. P., Blair's, 

 empiric English preparation containing colchi- 

 cum and used in the treatment of gout. P., Blaud's. 

 See BlauJ. P., Blue. See Hydrargyrum. P.- 

 box, a box for holding pills. P.-coater, a machine for 

 coating pills with sugar, gelatin, or other material. P., 

 Compound Cathartic. See Colocynth. P., Com- 

 pressed, a pill made by compressing the powdered 

 substance into proper shape by means of a powerful 

 press, without the use of an excipient. P., Dupuy- 

 tren's, a pill containing extract of opium, bichlorid of 

 mercury, and extract of guaiac. P., Friable, a pill that 

 crumbles into powder on slight pressure. P., Griffith's. 

 See F.rrum. P.-mass, a cohesive mass into which 

 the ingredients of the pills are worked. P. -tile, a 

 metallic plate with semi-cylindric grooves on its upper 

 surface. It is used in the manufacture of pills. 



Pillar (pil'-ar) [pila, a pillar]. In biology, a columnar 

 structure, a columella, modiola, cms, peduncle. P. 

 of the Abdominal Ring, one of the columns on 

 either side of the abdominal ring. P., Anterior, of 

 the Fauces, the fold on each side of the uvula formed 

 by the projection of the palatoglossus muscle covered 

 by mucosa. P., Anterior, of the Fornix, the band 

 of white matter on either side that passes from the 

 anterior extremity of the fornix to the base of the 

 brain, forming part of the corpus albicans, and that 

 curves upward into the optic thalamus of the corres- 

 ponding side. P. of Corti, one of the rods of Corti, 

 two greatly modified epithelial cells in the organ of 

 Corti ; they are slender, slightly S-shaped, longitudin- 

 ued bodies, consisting of a denser substance — 

 the pillar proper — and a thin, imperfect protoplasmic 

 envelop. P. of the External Abdominal Ring, one 

 of the two columns or pillars forming the free borders 

 of the aponeurosis at the site of the external abdom- 

 inal ring. The external pillar is formed by that 

 portion of Poupart's ligament which is inserted into the 

 spine of the pubis. The internal, or superior pillar 

 is a broad, thin, flat band, which interlaces with its 

 fellow on the opposite side in front of the svmphvsis 

 pubis. P., External, of the Diaphragm. See Cms 

 of the Diaphragm. P. of the Fauces, one of the 

 mlds of mucous membrane on either side of the 

 fauces. P., Flexible, a jointed pillar for inclining the 



body of the microscope. P., Internal, of the Ab- 

 dominal Ring. See P. of the External Abdom- 

 inal Ping. P., Muscular. See Muscle-column. P., 

 Posterior, of the Fauces, a fold at each side of 

 the uvula formed by the palato-pharyngeus muscle, 

 covered by mucosa. P., Posterior, of the Fornix, 

 one of the two bands which pass from the posterior 

 extremities of the fornix downward into the descend- 

 ing horn of the lateral ventricle. P.. Superior, of 

 the Abdominal Ring. Synonym of P., Jntemal, 

 of the Abdominal Ping. 



Pillicoshy (pil'-ik-o-she). A vulgar corruption of pil- 

 ula cochia, cochia pills (see Cochia) ; hence, powder 

 of aloes and canella, or hiera picra. 



Pilliocausia ( pil-e-o-kaur '-se-ah). See Pillicoshy. 



Pilocarpidin (pi-lo-kar 1 '-pid-in) [tTi/jo^, a cap ; nap-og, 

 fruit], Ci H 10 X 2 O w . A syrupy, alkaline basic sub- 

 stance, obtained from jaborandi leaves ; it is weaker 

 in its action than pilocarpin. 



Pilocarpin (pi-lo-kar'-pin). See Pilocarpus. 



Pilocarpus (pi-lo-kar'-pus) [-i/.oc, a cap ; napxoc, 

 fruit]. Jaborandi. The young leaves of P. selloanus, 

 P. pennatifolius.and Piper jaborandi, containing a vola- 

 tile oil and 2 alkaloids, jaborin and p'locarpin. Jaborin 

 is similar to atropin in action, and antagonistic to pilo- 

 carpin, but it is present in the leaves in only small 

 amounts. Pilocarpin stimulates the peripheral ends of 

 the secreting nerves going to glands, perhaps also the 

 centers. It thus causes an increased flow of saliva, 

 marked sweating, secretion of tears, of mucus from the 

 nose and the bronchi, of the gastric and intestinal juices. 

 It also stimulates involuntary muscle ; on the vagus it 

 acts as a stimulant, causing slowing of the pulse ; in 

 large doses it paralyzes the vagus. Vomiting is pro- 

 duced by jaborandi and sometimes by pilocarpin alone. 

 Pilocarpin causes contraction of the pupil. Its action 

 is antagonized very completely by atropin. Thera- 

 peutically, pilocarpin is used chiefly in renal dropsy 

 to produce sweating, also in uremia, for the same pur- 

 pose. It probably causes an elimination of urea, and 

 other waste-products, both in the sweat and in the saliva. 

 As a diaphoretic it is also employed in coryza and 

 bronchitis. It has been used most successfully in ery- 

 sipelas. Pilocarpus, Ext., Fid., dose n^v-^j. J., 

 Ext. (B. P.) Dose gr. iij-x. J., Infus. (B. P.) 

 Dose 'j-ij. J., Tinct. (B. P.) Dose g %-%. 

 Pilocarpinae hydrochloras, the alkaloid. Dose gr. 

 %-%■ P. nitras. Dose hypodermatically gr. T V-^- 

 Injectio P. nitrat. hypodermica ; 1 grain in 20 

 minims. Dose rtDj-vj. 



Pilocystic (pi-lo-sis'-tik) [pilus, hair; ki'ctic, a sac]. 

 A term applied to encysted tumors containing hair and 

 fatty matters, e.g., some dermoid cysts. 



Pilo-motor (pi-lo-mo / -tor) [pilus, hair; movere, to 

 move]. Causing movement of the hair. P. Nerves, 

 nerves causing contraction of the erectores pilorum, 

 as in horripilation of animals. 



Pilonidal (pi-lo-ni'-dal) [pilus, hair; nidus, nest]. 

 Containing an accumulation of hairs in a cyst. P. 

 Fistula, a fistula in the neighborhood of the rectum 

 depending upon the presence of a tuft of hair in the 

 tissues. It is also known as Coccygeal Fistula. 



Pilose, Pilous (pi'-loz, pi'-lus) [pilosus, hairy]. In 

 biology, covered with long, straight, soft hairs ; hairy; 

 hirsute. 



Pilosis (pi-lo'-sis') [pilus, hair]. The development, 

 and especially the abnormal or excessive development, 

 of hairs. 



Pilosity (pi-los'-u'-e) [pilus, a hair]. The state of be- 

 ing pilose. 



Pilous (pi'-lus). See Pilose. 



Pilula (pil'-u-lah) [L. : //., Pilula?]. A pill. In 



