PLICATE 



1124 



PLUMBUM 



the duodenum. P. longitudinalis meningis, the 

 falx cerebri. P. lunata. Synonym of P. semilunaris. 

 P. palato-epiglottica of Mojsisovics, a few thin, 

 wrinkled folds of mucosa running across in front of 

 the epiglottis between the two posterior pillars of the 

 fauces in elephants. P. palmatae, oblique projections 

 of the mucosa of the cavity of the neck of the uterus. 

 P. petro-clinoidea lateralis, a fold of dura mater ex- 

 tending from the petrous portion of the temporal bone 

 to the anterior clinoid process. It forms the upper 

 and lateral wall of the cavernous sinus. P. petro- 

 clinoidea medialis, a similar fold extending between 

 the upper border of the petrous portion of the tem- 

 poral bone and the posterior clinoid process. P. 

 pharyngo-epiglottica, a fold of mucosa extending 

 from the neighborhood of the pharyngeal opening of 

 the Eustachian tube to the vicinity of the epiglottis. 

 It marks the insertion of the stylo-pharyngeus muscle. 

 P. polonica, a matted, entangled condition of the 

 hair, due to want of cleanliness in certain diseases of 

 the scalp, with purulent discharge. P. pterygo- 

 mandibularis, a mucous fold on the pterygo-maxillary 

 ligament. P. recti, the folds of mucosa in the rectum. 

 P. recto-uterina. See Douglas's Pouch. P. recto- 

 vesicalis. See Recto-vesical Folds. P. salpingo- 

 palatina, a fold of mucosa passing downward from the 

 anterior margin of the Eustachian orifice. P. sal- 

 pingopharyngea, a prominent fold passing downward 

 from the posterior margin of the Eustachian orifice in 

 the naso-pharynx. P. saxonica. Synonym of P. 

 polonica. P. semilunaris, a conjunctival fold in the 

 inner canthus of the eye, the rudiment of the membrana 

 nictitans of birds. P. semilunaris Douglasii. See 

 Douglas 's Pouch. P. semilunaris fascialis trans- 

 versalis, the fold of transversalis fascia forming the 

 lower edge of the internal abdominal ring. P. 

 serosae, any folds of serous membrane. P. sigmoidea 

 coli, P. sigmoidea recti, one of the folds of mucosa 

 in the colon and in the rectum. P. sublingualis, the 

 frenum of the tongue. P. synovialis, fringes of the 

 synovial membrane. P. thyroarytenoideae. Syn- 

 onym of Ligaments, Thyroarytenoid. See Ligament. 

 P. transversalis recti. See P. sigmoidea recti. P. 

 urachi, the peritoneal fold covering the urachus. P. 

 urogenitalis, a fold in the posterior wall of the peri- 

 toneal cavity of the embryo which surrounds the lower 

 extremity of the Wolffian duct. P. utero-rectalis. 

 See Douglas's Pouch. P. vaginalis, the rugae of the 

 vaginal mucosa. P. vasculosae, the synovial fringes. 

 P.. vesico-uterinae. Synonym of Vesico-uterine 

 Folds. P. villosae ventriculi, folds of the mucosa 

 of the stomach forming a ventriculum, in the meshes 

 of which are the openings of the gastric tubules. 



Plicate {pli'-kat) [plicatus, p.p. of plicare, to fold, to 

 bend]. Folded like a fan. 



Plicatile ( pli* '-kat-il) [plica, a fold]. Capable of 

 being folded. 



Plicatio (pli-ka'-she-o). Synonym of Plica polonica. 



Plication ( pli- ka' '-shun) [plicare, to fold]. A plica, 

 or fold. 



Plicatopapillose {pli-ka'-to-pap'-il-oz) [plicatus, pli- 

 cate ; papillosus, papillose]. In biology, both plicate 

 and papillose. 



Plicatulate ( pli-kat'-u-laf) [plicatulus, dim. of pli- 

 catus, folded]. In biology, minutely folded, or 

 plicate; e.g., certain plant-portions. 



Plicatura {pli-kat-u'-rah) [plicare, to fold]. A cere- 

 bral convolution ; also a ligament ; also synonym of 

 Pt 'ica polonica. 



Plicature { plik' -at-ur) [plicare, to fold]. Same as 

 Plication. 



Plicidentine {plis-id-en' -tin) [plica, fold; dens, tooth]. 



Applied to dentine which is folded so as to form a 

 series of plates. 



Pliciferous {pli-sif-er-us) [plica, a fold; ferre, to 

 bear]. In biology, possessing folds or plicae. 



Pliciform {plis'-if-orm) [plica, a fold ; forma, form] . 

 In biology, like a plait or fold. 



Plicotomy ( pli-kot f -o-me) [ plica, a fold ; to/jt/, a cut- 

 ting]. Division of the posterior fold of the mem- 

 brana tympani. 



Plombierin. See Glairin. 



Plongeade (plon'-jahd) [Fr.]. The physiologic con- 

 dition of a diver with suspended respiration. The' 

 blood accumulates in the veins and right side of the : 

 heart. 



Ploteric ( plo-ter* '-ik) [ivluTr/p, drifting]. In biology, i 

 applied by Hteckel to those organisms of the ocean! 

 [plankton) which are carried about involuntarily. Cf. j 

 Necteric. 



Ploucquet's Test. See Birth, Live. 



Plug [D., plug, a bung]. Something that occludes a 

 circular opening or channel. P., Cervical. Synonym! 

 of P., Mucous. P., Kite- tail, a tampon resembling! 

 a kite-tail. P., Mucous, the mass of inspissated! 

 mucus which occludes the cervix uteri during preg-j 

 nancy and is discharged at the beginning of labor! 

 Ps., Dittrich's; small, dirty-green masses found in the| 

 lowest layer of the sputum in fetid bronchitis. 



Plugging [plug' ' -ing) [D.,plug, a bung]. See Tarn 

 pon. P. Instruments, dental instruments for intro 

 ducing and consolidating fillings. P. Teeth. Set 

 Filling Teeth. 



Pluma {plu f -mah) [pluma, a small, soft feather 

 pi. , Plumes']. In biology, a quill-feather, or contour 

 feather, as distinguished from a down-feather. 



Plumaceous [plu-ma' -se-its) [pluma, a plume], I 

 biology, having the character of a pluma ; pennaceous 



Plumacoleum [plu-mak-o' -le-uni) [pluma, feather 

 oleum, oil]. A pledget of lint. 



Plumage [plu'-?naj) [pluma, plume]. The feather 

 covering of birds. 



Plumate [plu'-mat) [pluma, plume]. In biology, re 

 sembling a plume. 



Plumbago (plum-ba'-go). See Graphite. 



Plumbeus \plum' -be-us) [plumbum, lead]. Lead 

 colored. 



Plumbi et Opii, Liquor. Lead-and-opium wash- 

 mixture of a solution of lead acetate and laudanum. 



Plumbic [plum'-bik) [plumbum, lead]. Pertaining t 

 lead. P. Acid, Pbll 2 3 ; a dibasic acid produce 

 during the electrolysis of lead salts. 



Plumbiferous (plum-bif '-er-us) [plumbum, lead; /err, 

 to bear]. Producing lead. 



Plumbism {plum' -bizm) [plumbum, lead]. Leac 

 poisoning. See Saturnism. 



"PhjLTnbo\is.( plum' -bus) [plumbum, lead], Containii 

 the element lead in a lesser valency than the plumb 

 compounds. 



Plumbum {plum f -bum) [L.]. Lead. Symbol PI 

 Atomic weight, 207 ; quantivalence, II or IV. 

 bluish-white, soft, malleable metal, having a spftdi 

 gravity of 1 1.4, and melting at 332 . See El, 

 Table of. Lead is obtained from a native sulphj 

 called galena, by roasting. Soluble salts of lead coi 

 bine with albumin, forming albuminates. In lar; 

 doses by the stomach they are irritant to the muo 

 membrane. Upon the intestines they act as poweri 

 astringents. If absorbed into the circulation in OT«j 

 quantities for a considerable period of time, IB 

 causes a very interesting and varied group ol -}' 11 

 toms, which are described under Saturnism. </■ 

 Lead is eliminated through the kidneys and 1 

 intestinal mucosa. It appears to check the elini 





