PANDURATE 



966 



PANSPERMATISM 



all ; dexwOat, to receive] . A hospital receiving all 

 diseases. 



Pandurate (pan'-du-rat) [pandura, a musical instru- 

 ment]. Shaped like a pandura or violin. 



Panduriform, Pandurate (pan-du' ' -rif-orm, pan'du- 

 rat) [ pandura, a lyre ; forma, form]. Eiddle-shaped ; 

 pandurate. P. Head, a head whose transverse sec- 

 tion would show a fiddle-shaped outline. 



Panesthesia (pan-es-the' -ze-ah) [nag, all ; alcHrjaig, 

 perception]. General or total sensation ; cenesthesia. 



Panesthetism (pan-es' -thet-izm). Same as Panesthe- 

 sia. 



Pang [ME., pange, a pang] . A momentary sharp pain. 

 P., Breast, angina pectoris. 



Pangene (pan'-jen) [nag (nav-), all ; yiveoig, birth, pro- 

 duction]. In biology, according to DeVries' theory 

 of heredity, one of the primary bearers of the individual 

 qualities or characters of the cell, i.e. , the constituent 

 qualities of the species ; one of the ultimate vital par- 

 ticles. Germ-substance is held to be formed of a num- 

 ber of different kinds of pangenes, of which as many 

 are present as there are qualities in the species ; they 

 have no definite arrangement, but are freely miscible. 

 They differ from the " gemmules " of Darwin and 

 correspond to the "biophors" of Weismann. See 

 Heredity. 



Pangenesis (pan-Jen' '-es-is) [nag, all ; yivzaig, produc- 

 tion]. In biology, Darwin's theory of heredity, which 

 supposes the existence of gemmules separated from the 

 body-cells and segregated from the circulation by the 

 reproductive glands. These preformed constituents 

 of all parts of the fully-formed animal or plant become 

 aggregated in the germ, and give rise by a process of 

 evolution to the new organism. Pangenesis is opposed 

 to the theory of epigenesis, or the origin of the fully- 

 formed organism by a gradual process of differentiation. 

 See Heredity. P., Intracellular, the origin of ulti- 

 mate vital particles (pangenes, gemmules, biophors) 

 within the cell. 



Pangenetic (pan-jen-ef '-ik) [nag, all ; yeveatg, genesis]. 

 Pertaining to pangenesis. 



Pangium edule ( pan' -Je-um-e-du'-le) [L.]. A bixa- 

 ceous plant of Java. Its oily leaves, though edible 

 after due preparation, contain a powerfully narcotic 

 principle which is readily removed by maceration in 

 cold water. Unof. 



Panhistophyton (pan-his-toff' '-it-on) [nag, all; lards, 

 web, tissue ; <pvrov, plant]. See Microbe of Pebrine, 

 under Bacteria. See also Microsporidia. 



Panhysterectomy (pan-his-ter-ek' -to-me) [nag, all ; 

 vorepa, womb; ekto/ht/, excision]. Complete extirpa- 

 tion, or surgical removal, of the uterus. 



Panicle (pan'-ik-l) [panus, a thread wound upon the 

 bobbin in a shuttle]. In biology, a branched raceme ; 

 an inflorescence of varying shape (determinate, inde- 

 terminate, cymose, botryose), but typically loose and 

 spreading, with repeatedly branched peduncles, as seen 

 in the grasses or the lilac. 



Panicula (pan-ik' '-u-lah) [L.]. A swelling or tumor. 



Paniculate (pan-ik' '-u-lat) [panicula, a panicle]. In 

 biology, arranged in panicles. 



Paniculus (pan-ik' ' -u-lus). See Panniculus. 



Panicum (pan' '-ik-um) [L.]. Panic-grass, a grami- 

 naceous plant widely distributed. P. insulare, a 

 West Indian species, having purgative properties. Unof. 



Panidrosis (pan-id-ro'-sis) [nag, all; idpug, sweat]. 

 General perspiration. 



Panis (pan'-is)[L.~\. Bread. 



Panizza, Foramen of. See Foramina, Table of 



Panmixia ( pan-miks' -e-ah) [nag, all ; /il^ig, mixing]. 

 In biology, Weismann s term for the tendency of or- 

 ganic structures to retrogress and disappear when 



their value to the species becomes nil, as e.g., the eyes 

 in cave-animals. 



Pannecrotomy (pan-nek-rot' -o-me) [nag, all ; venpog, 

 dead; rofirj, a cutting]. The dissection of all dead 

 bodies, suggested by Kraus as the best method to 

 prevent burial of living persons. 



Pannetier's Green. Same as Mittler ' s Green. 



Panneuritis (pan-nu-ri'-tis) [nag, all, every ; r 

 nerve; ing, inflammation]. A synonym of multiple 

 neuritis. 



Panniculus (pan-ik' -u-lus) [dim. of pannus, a piece 

 of cloth]. A small piece of cloth. In anatomy, a 

 small membrane. P. adiposus, a compact layer in 

 the subcutaneous stratum of the skin, in which the 

 interfascicular spaces of the reticular framework of 

 fibro-elastic bundles are occupied by adipose tissue. 

 The large, thin muscles by which the lower animals 

 move the skin, represented in man mainly by the 

 platysma and by some of the facial muscles. P. 

 cordis, the pericardium. P. subtilis, the pia mater. 

 P. transversus, the diaphragm. 



Pannose (pan'-oz) [pannus, cloth, rag]. In biology: 

 (a) Having the texture or appearance of woolen cloth 

 or felt, (b) Covered with a felted coat of hairs. 



Pannus (pan'-us) [L. ,a cloth]. Vascularization of 

 the cornea, usually due to the irritation of trachoma- 

 granulations. (The cornea is normally non-vascular.) 

 P. carnosus, P. crassus, one that has acquired a 

 considerable thickness. P. siccus, an old pannus 

 composed of connective tissue and poor in vessels. 



Panochia (pan-o'-ke-ah). Synonym of Venereal Bubo. 



Panococo (pan- o - ko' - ko) [S. Amer.]. The South 

 American leguminous tree, Swartzia tomentosa ; its 

 bark is strongly sudorific, and the tree affords a black 

 resin. Unof. 



Pano'istic (pan-o-is'-tik) [nag, all; <mv, egg]. In biol- 

 ogy, applied to ovaries that produce ova onl 

 distinguished from meroistic ovaries, which produce 

 separate ova and yolk-cells or nutritive cells. 



Panopathy (pan-op' -ath-e) [nag, all ; natiog, disease]. 

 A disease widely prevalent among many people, or 

 affecting all the tissues of one individual. 



Panophobia (pan-o-fo'-be-ah). See Pantophobia. 



Panophthalmia (pan-off-thai' -me-ah). See Panoph 

 thalmitis. 



Panophthalmitis (pan-off-thal-mi' -tis) [nag, all ; bipdai 

 fi6g, eye; ing, inflammation]. Inflammation of all 

 the tissues of the eyeball. 



Panosteitis (pan-os-te-i'-tis) [nag, all; barhv, bone: 

 ing, inflammation]. An inflammation of all tin 

 of a bone. 



Panotitis (pan-o-ti'-tis) [nag, all ; ovg, ear ; inc. in 

 flammation]. An inflammatory affection involving 

 all the structures of the ear, and resulting in complete 

 destruction of its functions, with dangerous bone- 

 sequelae. 



Panpharmacon (pan-far' -mak-oii) [nag, all ; 

 drug], A panacea. 



Panphlegmon (pan-fleg'-mon) [nag, all ; </>/ 

 flammation]. Gangrene of rapid course and do 

 ment, probably microbic in origin. 



Panphobia (pan-fo'-be-ah) [nag, all; $6(log, dread]. 

 Synonym of Panophobia. 



Panplegia (pan-pie' -je-ah) [nag, all; nlrj^ij, stroke]. 

 Generalized paralysis. 



Pansch, Fissure of. See Fissures, Table of. 



Pansclerosis (pan-skle-ro'-sis) [nag, all ; aa'/epog, hard]. 

 Complete sclerosis or hardening of a part. 



Panspermatism (pan-sper' -mat-izm) [nag, all ; or, 

 seed]. In biology, Spallanzani's theory that th 

 is full of invisible germs ; the theory of omnipi 

 germs. 



