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PSEUDOSTOMATOUS 



1205 



PSORIASIS 



according to Klein, however, many of these stigmata 

 are the protruding, stained processes of connective- 

 tissue cell-. 2. The oral orifice of the echinopaedium 

 of an echinoderm. 



Pseudostomatous (su-do-sto> '-mat-us) \y\>ev6rft, false ; 

 crroua, mouth]. Provided with pseudostomata ; 

 pertaining to a pseudostoma. 



Pseudostome (su / - do - stom) [rj/evtifc, false ; arofta, 

 mouth]. See Pseudostoma. 



IPseudostomosis (su - do - sto - mo'- sis) [tyevdr/c, false ; 

 Tt a, mouth]. The formation or existence of a pseu- 

 dostome. 

 Pseudostomotic {su-do- sto - mot'- ik) \jpev6ijc, false ; 

 aroua, mouth]. Characterized by pseudostomosis. 

 Pseudostomous (su-do-sto / -mus) [y>fr<5//c, false ; crofia, 

 mouth]. In biology, having pseudostomes. 

 Pseudo-stroma (su - do - stro'- mak) [ipevdfc, false ; 

 orpiJua, a covering]. A false stroma; a cellular 

 body resembling a stroma. 

 Pseudo-synarthrosis (su-do-sin-ar-thro* '-sis) [ipevSi/r, 

 false : vw, with ; apdpov, joint]. A ligamentous 

 pseudarthrosis. 

 Pseudo-syphilis (su-do-sif '-il-is) [\f>evdfc, false ; syphi- 



vphilis]. Chancroid. 

 Pseudo-tabes (su-do-ta' -bez) [ipevSr/g, false ; tabes, a 

 wasting]. Any disease simulating locomotor ataxia. 

 See Polyneuritis potatorum. P. mesenterica, a func- 

 tional disorder most common in young women and 

 rical persons, and resembling tabes mesenterica. 

 Pseudo-tetany su-do-tet' '-an-e) [tyevSift, false ; -eravoc, 



tetanus]. A disease simulating tetany. 

 Pseudo-trichinosis (su-do-trik-in-o 1 '-sis) [ybevdrjc, false ; 

 hair; voaoc, disease]. Acute polymyositis re- 

 sembling trichinosis of the muscles. 

 Pseudotropin ( su-do-tro'-pin) [ifrei'dz/c, false ; rpi—eiv, 



to turn]. C 8 H 15 NO. An isomeric form of tropin. 

 Pseudo-tuberculous (su-do-tuber'-ku-lus) [i{>evdqc t 

 false ; tuberculum, tubercle]. Simulating tuberculosis. 

 Pseudo-typhoid (su-do-ti' -foid) [ipevdr/r, false ; ttjooc, 

 smoke] . False typhoid ; simulating typhoid fever. 

 P. Bacilli, bacteria that resemble the bacillus of enteric 

 fever, but are not identical with it. 

 Pseudo-urticaria (su-do-ur-tik-a' -re ah) [ipevdr/c, false ; 

 urtica, nettle]. A skin-affection resembling urticaria 

 in appearance, but not identical with it. 

 Pseudoval \:u-do*-val) [^/evSijQ, false; ovum, egg]. 



Pertaining to a pseudovum. 

 Pseudovarian (su-do-va' -re-an) [ipevtirjr, false ; ovarian, 



ovary] . Pertaining to a pseudovarium. 

 Pseu do -variola [su -do-va- ri f - o - lah) . Synonym of 



'cella. 

 Pseudovarium, Pseudovary (su-do-va' '-re-um , su-do*- 

 : :v6rjc, false ; ovarium, ovary]. The ovary 

 of a viviparous insect. 

 Pseudovelar (su-do-ve / -/ar) [i\>evdi]c, false ; velum, veil]. 



Vascular ; having the character of a pseudovelum. 

 Pseudovelum \su-do-ve* -lum) [ipevdr/c, false; velum, 



veil]. The vascular velum of some hydrozoans. 

 Pseudo-vermicules (su-do-ver'-mik-ulz) [ibevdr/c, false ; 

 tes, a worm]. The crescentic bodies found by 

 Laveran in the blood of persons suffering from malarial 

 fever. See Parasites (Animal), Table of. 

 Pseudovum (su-do* -vum)[iLwfyc, false ; oz'um, egg ://. , 

 Pseudova~\. An egg that develops parthenogenicallv. 

 Pseudoxanthin (su-doks-an' -thin) [ibevdi/c, false ; $av- 

 ellow]. A name given, it is thought inappro- 

 priately, by Gautier to a leukomain-base, C 4 H 5 X 5 0, 

 isolated from fresh muscle-tissue of beef. It so much 

 resembles xanthin. however, that it may have been 

 often mistaken for that compound — hence, the name 

 given by Gautier; but it differs from xanthin in its 

 | empiric composition, solubility, and crystalline form. 



The name Pseudoxanthin was also given by Schultzen 

 and Filehne to a body isomeric with xanthin, obtained 

 by action of sulphuric upon uric acid. 



Pseudymen (su-di'-men) [yVew5//c, false; vfitjv, mem- 

 brane]. A false membrane. 



Psiloma (si-lo'-mah) [rpu.oc, bare]. Baldness. 



Psilopedic (si-lo-pe'-dik) [iptX6g, bare ; ~air, child]. 

 Of birds born featherless. 



Psilosis (si-lo'-sis) [u't/.dc, bare]. I. The removal of 

 the hair from a part. Depilation. 2. A term for cer- 

 tain forms of tropical diarrhea. 



Psilothrum (silo* -thrum) \ibifjuBpov\. A depilatory. 



Psoadic so-ad'-ik) [ voa. loin]. Pertaining to a psoas 

 muscle, or to the loin. 



Psoas (so / -as) [V^«»loin]. The loin. P. Abscess, 

 an abscess, usually dependent u]x>n tuberculous dis- 

 ease of the vertebra, making its way along the sheath 

 of the psoas muscle and pointing at the front of the 

 thigh, below Poupart's ligament, to the outer side of 

 the spine of the pubis. See Abscess. P. magnus, 

 P. major. See Muscles, Table of. P. minor, P. 

 parvus. See Muscles, Table of. P. quartus. Syno- 

 nym of Obturator interims. 



Psoatic (so-at'-ik). Same as Psoadic. 



Psodymus (sod f -im-us) [i\>6a, loin ; 6i6vuoc, double]. 

 A sysomic monstrosity with two heads and thoraces, 

 and conjoined abdominal and pelvic cavities. There 

 are two legs, and occasionally the rudiments of a third. 



Psoitis (so-i'-tis) [il>6a, loin ; iriq, inflammation]. In- 

 flammation of the psoas muscles, or of the region of 

 the loins. 



Psoloncus {so-long* -kus) [^xj/jj, the bared glans penis ; 

 dyKoc, tumor]. Tumefaction of the prepuce and the 

 glans penis, due to paraphimosis. 



Psora (so* -rah) \t'£>pa; iboeiv, to scratch]. Scabies. 

 See also Psoriasis. 



Psoralin (so-ral'-in). Synonym of Caffein. 



Psorelcosis (so-rel-ko* -sis) [ilnipa, scabies ; e/.kuou;, 

 ulceration]. Ulceration occurring during the progress 

 of scabies. 



Psorentery (so*- ren - ter - e) [ifrapa, scabies ; evrepov, 

 intestine]. Asiatic cholera. 



Psoriasis (so-ri'-as-is) [-injpa, the itch]. Lepra alphos; 

 Lepra; Dry Tetter; Psora; a common chronic 

 inflammatory disease of the skin, characterized by 

 variously-sized lesions having red bases, covered with 

 white scales resembling mother-of-pearl. It affects 

 by preference the extensor surfaces of the body. The 

 lesions are infiltrated, elevated, clearly defined, cov- 

 ered with white, shining, easily-detachable scales, 

 which upon removal reveal a red, punctate, bleeding 

 surface. The eruption is absolutely dry, and itching 

 is usually absent. The etiology is obscure, though 

 heredity plays a considerable role in its production. 

 P. annularis. Synonym of P. circinata. P., Buccal, 

 P. buccalis. Synonym of Leukoplakia buccalis. See 

 also P. , Lingual. P. centrifuga, psoriasis in which 

 the patches heal in the center while spreading at the 

 periphery. P. circinata, psoriasis in which the cen- 

 tral part of the lesions has disappeared, leaving ring- 

 shaped patches. P. diffusa, a form in which there is 

 coalescence of large contiguous lesions. P. discoidea. 

 Same as P. nummularis. P., Eczematous, an 

 acute form with bright- red patches, less defined at the 

 margin than usual, with thin and papery scales, which 

 are thrown off so rapidly that they have no time to 

 aggregate into masses. The part is hot and tender, 

 itches severely, and very little irritation will produce 

 discharge. P. empyodes, a form in which a little 

 pus forms underneath the crusts ; a rare event. P. 

 figurata, P. geographica, psoriasis in which the 

 patches are arranged in irregular patterns. P. gut- 



II 



