GLOSSARY. 265 



Parot'id. [From the Gr. para, " near," and ovs, otos, the " ear."] The large 



salivary gland under the ear. 

 Parturi'tion. [From the Lat. parturio, 2^a7-turitum, to " bring forth."] The 



act of bringing forth, of giving birth to young. 

 Patel'la. [Lat. "a little dish."] A small, io«i'/-shaped bone; the knee-pan. 

 Pec'toral. [From the Lat. pectus, pectoris, the "breast."] Pertaining to the 



breast or chest. 

 Ped'icle. [From the dim. of Lat. pes, pedis, a " foot."] A stalk. 

 Pel' vie. [From the Lat. pelvis, a "basin."] Pertaining to the pelvis, the 



basin or bony cavity forming the lower part of the abdomen. 

 Pep'sin. [From the Gr. pepto, to " digest."] A ferment principle in gastric 



juice, having power to convert proteids into peptones. 

 Pep'tone. [From the Gr. pepto, to " digest."] A term applied to proteid 



material digested by the action of the digestive juices. 

 Pericar'dium. [From the Gr. peri, " about," " around," and kardia, the 



" heart."] The serous membrane covering the heart. 

 Perichon'drium. [From the Gr. joen, "about," "around," and chondros, a 



" cartilage."] The serous membrane covering the cartilages. 

 Per'ilymph. [From the Gr. peri, "about," "around," and the Lat. hjmpha, 



" water."] The fluid in the osseous, and surrounding the membranous, 



labyrinth of the ear. 

 Perios'teum. [From the Gr. peri, "about," "around," and osteon, a "bone."] 



The membrane covering the bones. 

 Periph'eral. [From the Gr. peri, " about," " around," and phero, to " bear,"] 



Pertaining to the periphery or circumference ; that which is away from 



the centre and towards the circumference. 

 Peristal'sis. [From the Gr. peristello, to " surround," to " compress."] 



Peristaltic action. A term applied to the peculiar movement of the 



intestines, like that of a worm in its progress, by which they gradually 



propel their contents. 

 Peritone'um. [From the Gr. periteino, to " stretch around," to " stretch all 



over."] The serous membrane lining the walls and covering the con- 

 tents of the abdomen. 

 Perone'al. [From the Gtv. perone, the "fibula."] Pertaining to the fbula ; 



a term applied to muscles or vessels in relation to the fbula. 

 Pe'trous. [From the Gr. petrd, a "rock."] Having the hardness of rock. 

 Pey'er's Glands. The clustered glands in the intestines, so named after the 



anatomist, Peyer, who well described them. 

 Phalan'ges. [Lat. pi. of phalanx, a " closely serried array of soldiers."] A 



name given to the small bones forming the fingers and toes, because 



placed alongside one another like a phalanx. 

 Phar'ynx. [From the Gr. pharao, to " plough," to " cleave."] The cleft or 



cavity forming the upper part of the gullet. 

 Phren'ic. [From the Gr. phren, the " diaphragm."] Pertaining to the dia- 

 phragm. 

 Pi'a Ma'ter. [Lat. pia (fern.), "tender," "delicate," and mater, "mother."] 



The most internal of the three membranes of the brain. See Dura 



Mater. 



