DERMATOSOME 



212 



DESMOPEXIA 



the. sensory or trophic nerves. It maybe self-limited 

 in its course (cyclic), as herpes zoster and herpes fe- 

 brilis ; or it may be acyclic, as neurotic edema, neurotic 

 atrophy, and neurotic necrosis of the skin. D., 

 Parasitic, a papulovesicular disease described by 

 Nielly in which a filaria-like parasite was found, in the 

 vesicles, and believed by him to be identical with 

 craw-craw. D., Postvaccinal, a dermatosis follow- 

 ing vaccination marked by lesions similar to those of 

 urticaria pigmentosa except that desquamation is pres- 

 ent and dermographism is absent. D., Unna's. See 

 Dermatitis, Seborrheic (Illus. Diet.). 



Dermatosome. (See Illus. Diet.) 2. One of the hy- 

 pothetic ultimate units that form the membrane of 

 vegetal cells. 



Dermatotherapy (dur-mat-o-ther' '-ap-e). The thera- 

 peutics of cutaneous affections. 



Dermatoxerasia (dur-mal-o-zer-a'-ze-ah) [dep/ia, skin; 

 £jr/paaia, dryness]. Dryness of the skin. Cf. Xero- 

 derma. 



Dermatozoonosus (dur-mat-o-zo-on-o / -sus) \6ep/ia, 

 skin ; r uov, an animal ; voaoq, a disease]. A cutane- 

 ous disease due to animal parasites. See Table of 

 Animal Parasites under Acarus, Filaria, Ixodes, 

 Leptus, Pediculus, Pitlex, Sarcoptes, etc. Cf. Epizoa. 



Dermectasia (dur-mek-ta' '-ze-ah). See Dermatolysis 

 (Illus. Diet.). 



Dermelminthiasis (dur-mel-min-thi'-ah-sis) [dep/ua, the 

 skin ; iXfiwg, a tapeworm]. A cutaneous affection due 

 to a parasitic worm. Cf. Dermatozoonosus. 



Dermoabdominalis {dur-mo-ab-dom-in-a'-lis). Per- 

 taining to the skin of the abdomen. 



Dermoactinomycosis ( dur-tno-ak-tin-o-my-ko' -sis ). 

 Infection of the skin by actinomyces. 



Dermoepidermal {dur-mo-ep-e-durm' -al). Partaking 

 of both the superficial and deep layers of the skin ; 

 said of skin-grafts. 



Dermohemia (dur-mo-he' -me-ah). See Dermathemia. 



Dermoid. (See Illus. Diet.) 2. A dermoid cyst. 



Dermol (dur'-mol). See Bismuth Chrysophanate. 



Dermolabial (dur-mo-la'-be-al). Having relation to 

 the skin and the lips. 



Dermomuscular (dur-mo-mus' -ku-lar). Having rela- 

 tion to both skin and muscles, as certain embryonic 

 tissues. 



Dermopapillary {dur-mo-paf -il-a-re). Having rela- 

 tion to the papillary layer of the true skin. 



Dermophlebitis {dur-mo-Jleb-i' -lis) \jSkpua, the skin ; 

 tftkty, a vein]. Inflammation of the cutaneous veins. 



Dermosapol {dur-mo-sap'-ol). A soap said to contain 

 perfumed cod-liver oil, Peruvian balsam, wool-fat, fat, 

 glycerin, and alkali. To this specifics may be added ; 

 it is used as an inunction in skin diseases, tubercu- 

 losis, etc. 



Dermostenosis (dur-mo-ste-no'-sis) [pepfia, skin ; 

 orevuaig, stenosis]. A tightening of the skin, due to 

 swelling or to disease. Cf. Scleroderma. 



Dermostosis (dttr-mos-to'-sis) Tdipua, skin ; oot&ov, a 

 bone]. Ossification occurring in the true skin. 



Dermosynovitis (dur-mo-si-no-vi'-fis) [d&pfia, skin ; 

 synovitis']. Inflammation of a subcutaneous bursa to- 

 gether with the adjacent skin. D. plantaris ulcerosa, 

 a severe suppuration in the sole of the foot which pro- 

 ceeds from inflammation of the bursa beneath a cal- 

 losity and gives rise to a perforating ulcer. 



Dermotherapy (dttr-mo-lher J '-ap-e). See Dermato- 

 therapy. 



Derrid \der , -id). A highly toxic substance isolated by 

 Greshof from derris root, Denis elliptua, Benth., a 

 leguminous plant of Malaya, used in Borneo as an ar- 

 row-poison ; it kills fish in a dilution of I : 5,000,000. 



Desalination (de-sal-in-a' '-shun) [de, from ; sal, salt]. 



The process of decreasing the salinity of a substance by 

 the removal of salts. 



Descent. (See Illus. Diet.) D. of the Fetus, the 

 subsidence of the fetus in the latter part of gestation. 

 D., Theory of, the theory that all higher organisms have 

 descended by evolution from lower forms ; as opposed 

 to the theory of spontaneous generation or special crea- 

 tion. Cf. Biogenesis, Darwinism, Evolution. 



Desiccator {des-ik-a' -tor) \desiccare, to dry]. A vessel 

 containing some strongly hygroscopic substance, such 

 as calcium chlorid or anhydrous sulfuric acid, and used 

 to absorb the moisture from the air of a chamber. 



Desichthol (des-ik'-thol). Deodorized ichthyol ; a prep- 

 aration produced from ichthyol by the removal of about 

 5% of volatile oil, to which the disagreeable odor is 

 due. 



Desilicification (de-sil-is-if-ih-a'-shun). The removal 

 of silica from a body, as in the preparation of siliceous 

 sponges for microtomy. Hydrofluoric acid is used. 



Desmameba (des-mah-me'-bah) [(Uo/Lta, a bond; am- 

 ceba\. A connective-tissue corpuscle considered as an 

 ameboid element. 



Desmarestia (des-mar-esf '-e-ah) [A. G. Desmarest, 

 French zoologist, d. 1838]. A genus of marine Alga 

 of the order Punctariacece. D. aculeata, Lam., a 

 cosmopolitan species. It forms one of the constituents 

 of Corsican moss. 



Desmatitis (des-mat-i'-tis). See Desmitis. 



Desmectasia, Desmectasis [des-mek-ta' -se-ah, -meW- 

 ta-sis) \ptop6q, a band ; ektcloiq, a stretching]. The 

 stretching of a ligament. 



Desmepithelium ( des - mep - ith -e f - le - um ) \_6eap6r, a 

 bond ; epithelium]. The endothelial or epithelial 

 lining of the bloodvessels, lymphatics, and synovial 

 cavities ; the epithelial portions of the mesoderm ; 

 desmal-epithelium. 



Desmiognathus {des-me-o-na' '-thus) [Seaside, a band ; 

 yvadoc, the jaw]. A monster, the lower jaw of which 

 has a supplementary head joined to it by ligamentous 

 or muscular attachment. 



Desmoblast (des' -mo-blast) [deo/uog, a bond ; B/moto^, 

 a germ]. Rouber's term for that portion of the area 

 opaca of the blastoderm, especially in mesoblastic ova, 

 which gives rise to the mesenchyma. Syn., Desmo- 

 hemoblast. 



Desmodium {des-mo'-de-um) [6eop.6c, a bundle]. A 

 genus of plants of the order Leguminosu. D. ery- 

 thrynaefolium, D. C, a species indigenous to South 

 America. An infusion of the roots is used in diarrhea 

 and dysentery. D. heterophyllum, D. C, a species 

 native of tropical Asia. The leaf and stem are used 

 medicinally. D. incanum, D. C, a native of the 

 West Indies, where the root is prized as a remedy for 

 dysentery. D. tortuosum, D. C, a species indigen- 

 ous to North America and the West Indies; the root 

 is purgative. D. triflorum, D. C, a species found 

 in all tropical countries. In India it takes the place 

 held by Trifolium and Medicago in Europe. The 

 fresh plant is applied to abscesses and wounds. 



Desmohemoblast (des-tno-hem' -o-blast). See Desmo- 

 blast. 



Desmology (des-mol'-o-je) [fco/jdc, a band; >»;<»•, 

 science]. The anatomy of the ligaments. Cf. .Si>/- 

 detmology. 



Desmon \des f -mon) [tha/xdr, a bond]. London's name 

 for the intermediary body of Ehrlich. 



Desmonosology {des-mon-os-ol f -o-je). See Desmo* 

 pathology. 



Desmopathology {des-mo-fath-ol'-o-jc) [(Strrum , a band ; 

 pathology], Tin- pathology of ligaments. 



Desmopexia (des-mo-peis'-e-aA) [aeofidc, a band ; 



a putting together]. Fixation of the round ligaments 



