PERIOVULAR 



1050 



PERIPTEROUS 



is not known whether they represent primarily distinct 

 skeletal pieces or merely separate centers of chondri- 

 fication of a larger mesochymal skeletal piece ; pro- 

 bably the latter. 



Periovular (per-e-o' -vu-lar)[Trepi, around; ovum, egg]. 

 Surrounding the ovum. 



Peripachymeningitis (per-ip-ak-im-en-in-ji' '-tis) [irepi, 

 around ; naxvc, thick ; fiijviyi;, membrane ; erif, in- 

 flammation]. Inflammation of the connective tissue 

 between the spinal dura and the vertebrae. 



Peripancreatitis (per-ip-an-kre-at-i' '-tis) [Trepi, around ; 

 irdyKpeac, pancreas; ltlc, inflammation]. Inflamma- 

 tion of the tissue about the pancreas. 



Peripapillary (per-ip-ap* -il-a-re)[irept ; , around ; papilla, 

 a papilla]. Occurring or situated around the circum- 

 ference of a papilla, and especially of the optic disc. 



Peripatetic (per-ip-at-ef ' -ik) [trepi, about ; wa-e'iv, to 

 walk]. Walking about, as in " walking typhoid." 

 Also, a disciple of Aristotle, who instructed his pupils 

 while walking. 



Peripenial (per-ip-e'-ne-al) [trepi, around ; penis, penis]. 

 Surrounding the penis. 



Peripetalous (per-ip-et'-al-us) [trepi, around; treraAov, 

 a leaf]. In biology, situated (a) about the petals of 

 a flower, or (b) about the petaloid ambulacra of a sea- 

 urchin. 



Peripetasma (per-ip-et-az r -mah) [trepnreTaa/xa, a cover- 

 ing]. Sick-bed. 



Periphacitis (per-ifa-si' '-tis) [trepi, around ; <pa.K6c, crys- 

 talline lens ; itic, inflammation]. Inflammation of the 

 periphacus. 



Periphacus (per-if-a f -kus) [trepi, around ; tyan6c, crys- 

 talline lens]. The capsule surrounding the crystalline 

 lens. 



Peripharyngeal {per-if-ar-in* ' -je-al) [trepi, around ; 

 (pdpvyt;, the throat]. In biology, surrounding the 

 pharynx. 



Peripherad (per-if f -er-ad) [n epufiepeia, circumference]. 

 Toward some peripheral part, or the peripheral as- 

 pect. See Position and Direction, Table of. 



Peripheral {per-if '-er-al) [trepupepeia, circumference]. 

 Pertaining to or placed near the periphery. In anat- 

 omy, pertaining to the parts, nerves, or blood-vessels 

 located distally, in contradistinction to central. See 

 Position and Direction, Table of. P. Akinesia, aki- 

 nesia due to some lesion of the anterior cornua of 

 the gray matter of the cord, the motor nerves, or the 

 muscles. P. Anesthesia, anesthesia due to lesion 

 of the sensory nerves or end-organs. P. Epilepsy, 

 epilepsy due to lesion of the brain-cortex. P. 

 Neuritis, neuritis of the peripheral nerves. P. 

 Organs, in biology, organs distinctly separated from 

 the main part of the body. 



Peripheren (per-if -er-en) [trepupepeia, circumference]. 

 Belonging to the periphery in itself. 



Peripheric (per-if '-er-ik) . Synonym of Peripheral. 



Peripheritis {per-ifer-i'-tis). Synonym of Periophthal- 

 mitis. 



Periphery (per-if f -er-e) [trepupepeia; trepi, around; 

 <j>epeiv, to carry]. The line bounding any surface. 

 The ectal part in contradistinction to the ental ; the 

 surface of the body. 



Periphimosis ( per-ifi-mo' -sis) . Synonym of Paraphi- 

 mosis. 



Periphlebitic (per-ifleb-it f -ik) [trepi, around; <j>7ihp, 

 vein ; trig, inflammation]. Pertaining to, affected 

 with, or of the nature of, periphlebitis. 



Periphlebitis (per-if-leb-i'-tis) [trepi, around ; tpleip, 

 vein; iTig, inflammation]. Inflammation of the ectal 

 coat of a vein. 



Periphoranthium (per-if-or-an f -the-um) [trepttyopa, 

 a circuit ; avOor, a flower]. See Periclinium. 



Periphractoiichen ( per-ifrak-to-li' '-ken) {jrepi^panroc, 

 fenced around ; Mxvv, lichen]. Circumscribed lichen. 



Periphyllum (per-if-W ' -um) [trepi, around ; fb'A/.ov, a 

 leaf]. See Lodicule. 



Periphyse (per'-if-iz). Same as Periphysis. 



Periphysis (per-if -is-is) [irepi, around ; (pveaOai, to 

 grow : pi., Periphyses\ In biology, one of the fila- 

 mentous structures arising from the hymenium of a 

 fungus at places where there are no asci, for example, 

 in the region of the neck. Sometimes the periphyses 

 protrude through the osteole. They are always pres- 

 ent in greater or less numbers except, according to 

 Fiiisting, in Massaria ; while Paraphyses are absent 

 from a number of genera both of fungi and lichens. 

 (Bennett and Murray.) 



Periplasm (per'-ip-lazm) [trepi, around ; Tr/acua, any- 

 thing formed] . In biology, a peripheral layer of pro- 

 toplasm, as that surrounding the oosphere, or the 

 gonOplasm of the antherid,in the Obmycetes. 



Periplast (per' '-ip- last) [Trepi, around ; trAaaaeiv, to 

 mold, form]. In biology, the periblast or matrix of 

 a part or organ ; the intercellular substance, or stroma. 



Periplastic (per-ip-las'-tik)[trepi, around; Tr'/uooav, to 

 mold, to form]. In biology: (a) Of or pertaining to 

 or resembling the matrix or periplast of a part or 

 organ : (b) The cell-substance about the nucleus or 

 endoplast ; perinuclear protoplasm. 



Peripleuritis ( per-ip-hi-ri' -tis) [trepi, around; Tr/.evpov, 

 side; itic, inflammation]. Inflammation of the tissues 

 surrounding the pleura. 



Peripneumonia (per-e-nu-mo / -ne-ak) [Trepi, around; 

 trvevfiov, lung]. See Pricumonia, P. notha, the 

 false pneumonia of the older writers ; the same as 

 capillary bronchitis. See Bronchitis; Capillary. 



Peripneustic ( per-e-nus' '-tik) [Kepi, about ; trvex 

 of or for breathing]. In biology, applied to that 

 state of the tracheal system in the majority of insect 

 larvae which undergo complete metamorphosis, in which 

 the stigmata of those segments which in the imago 

 carry wings, are closed, the stigmatic strands belonging 

 to these parts being present as rudiments. Cf. amphi- 

 pneustic, apneustic, holopneustic , metapneustic. 



Peripolar (per-ip-o / -lar) [Trepi, around ; trd/.oc, pivot]. 

 Surrounding poles. P. Zone. See Zone. 



Periportal (per-ip-or f -tal) [Trepi, around ; porta, door]. 

 Surrounding the portal vein. P. Carcinoma, a prim- 

 ary carcinoma developing around the portal vein, be- 

 ginning at its entrance into the liver, thence extending 

 along the portal vessels to the remotest branches. 



Periproct (per f -ip-rokt) [Trepi, around; trp ukt 6 c, the 

 anus]. In biology, the parietal region surrounding 



• the anus in an echinoderm. 



Periproctal, Periproctic (per-ip-rok'-tal, per-ip-rok'- 

 tik) [trepi, around ; trpuKrdc, anus]. Surrounding the 

 anus or rectum. 



Periproctitis (per-ip-rok-ti* '-lis) [Trepi, around ; rrpuKT6( t 

 anus; itic, inflammation]. Inflammation of tin 

 lar tissue about the rectum or anus. 



Periproctous (per-ip-rok' -tus) [trepi, around ; Try 

 the anus]. In biology, circumanal. 



Periprostatic (per-ip-ros-taf -ik) [Trepi, around ; irpoe- 

 rarr/c, one standing before]. Situated or occurring 

 around the prostate. 



Periprostatitis (per-ip-ros-tat-i'-tis) [Trepi, around; 

 TTpoffraTTjc, standing before ; trig, inflammation]. In 

 flammation of the tissues situated around the prostate. 



Peripsyxis (per-ip-siks'-is) [Trepi, around 



cooling]. The shivering of fever ; a general lull of 

 the temperature of the body. 



Peripterous (per- ip'-ter-us) [rrepi, around; wtej 

 wing]. In biology, feathered on all sides, or BUI 

 rounded by a wing-like expansion. 



