CYTOSFONGIUM 



205 



DAMAR 



Cytospongium {si-to-spun' '-je-um) \kvtoc, cell ; andyyoc, 

 sponge]. The cell network or spongioplasm contain- 

 ing in its meshes the hyaloplasm. Cf. Mitome and 

 Paramitome. 



Cytothesis {si-to-thc'-sis) [k/toc, a cell ; diaic,a placing 



or arranging]. Cell-repair. 

 Cytotoxin {si-lo-toks'-in). See Cytolysin. Cf. Ilemo- 



toxin, Hepatotoxin, Leukotoxin, Nephrotoxin, Sperm a - 



toxin. 



D 



Daboia {da-boi'-ak) [native name]. A genus of soleno- 

 glyph serpents established by Gray, 1840 ; certain spe- 

 cies are worshiped in India. D. russellii, a veno- 

 mous species of viper dreaded greatly in India and 

 Ceylon, where it is called Russell's viper, cobra 

 monil, and ticpolonga. The nostrils are large, lateral, 

 and surrounded by three scales ; color brown with 

 three rows of large white-edged rings, ventral surface 

 yellow ; habits nocturnal. The venom causes intra- 

 vascular thrombosis. 



Dacryadenoscirrhus {dak-re-ad-en-o-shir / -us) [fidnpv, 

 a tear ; hiSijv, a gland ; cnuppog, hard]. An indurated 

 tumor of the lacrimal gland. 



Dacryocystitis. (.See Illus. Diet.) D. blennor- 

 rhoica, purulent inflammation of the lacrimal sac. D. 

 phlegmonosa, inflammation of the tissues composing 

 the lacrimal sac and of the surrounding soft parts. 



Dacryocystoblennorrhea (dak-re-o-sist - - Men - o - re'- 

 ah). See Dacryocystitis blennorrhoica. 



Dacryocystotome {dak-re-o-sist' -o-tom) [dfatpv, a tear; 

 nrrsric, a sac ; rop.?'/, a cutting]. An instrument for in- 

 cising the lacrimal sac. 



Dacryocystotomy {dak-re-o-sist-of '-o-me). Incision of 

 the lacrimal sac. 



Dacryuria {dak-re-td-re-ah) [fiditpv, a tear; obpov, 

 urine]. The enuresis which accompanies weeping in 

 cases of hysteria, fright, or nervousness. 



Dactylic [dak 1 '-til-ik) [ddnrvAoc, a finger]. Pertaining 

 to a finger or toe. 



Dactyliferous {dak-til-if -ur-us) [fidn-vAoc, a finger; 

 Jem; to bear]. I. Having fingers or finger-like parts, 

 organs, or appendages. 2. [fidnTVAoc, a date, so 

 called because shaped like a dactyl]. Date-bearing, 

 ns Pkoenix dactylifera, the date palm. 



Dactylitis. (See Illus. Diet.) D. syphilitica, a rare 

 tertiary-syphilitic affection of the fingers and toes, con- 

 sisting of a gummatous infiltration of the subcutaneous 

 connective tissue, and of the fibrous portions of the 

 joints and bones. It is accompanied by great de- 

 formation, and is to be distinguished from a similar 

 affection of the muscular tissues called by Lewin 

 phalangitis syphilitica {</. v.). Syn., Paronychia 

 syphilitica. 



Dactylius [dak-til' '-e-us) [daKTi'Aioc, anything ring- 

 shaped]. See Parasites, Table of (Illus. Diet.). 



Dactylocampsodynia (dak-til-o-kamp-so-din'-e-ah) 

 \j)(ii<rv'/i)c, a finger ; Kdprj>ic,n bending; odvv?/, pain]. 

 Painful flexion of the fingers or toes, 

 actylograph {dak-tit' -o-graf) [Mktvaoc, a finger; 

 ypfopecV, to write]. 1. A " typewriter "; a writing 

 machine operated by the fingers. 2. A keyboard in- 

 strument for the purpose of communication between 

 blind deaf-mutes. 



actylose, Dactylous {dak'-til-oz, -us). See Dactyl- 

 ate (Illus. Diet.). 

 Dactylotheca {dak til-o-the'-kah) [dditTVAoc, a finger; 



O'/ici/, a case]. See Finger-cot. 

 Dadyl (dad'-il). Blanchet and Sell's name for a cam- 



j 



Ds 



phene produced by the action of lime on artificial cam- 

 phor. 



Daedaleum. See Dedaleum. 



Dsemia {dd-me-ah). A genus of plants of the order 

 Asclepiadea:. D. extensa, R. Br., a twining, shrubby 

 plant of eastern India, Malaya, and tropic Africa. It 

 is employed in infusion in the treatment of pulmonary 

 complaints. The juice of the leaves mixed with taba- 

 shir or chunam, a silicious deposit found in bamboos, 

 is applied externally in cases of rheumatism. 



Dsemonorops {de-tuon'-o-ropz) \6aif.iuv, a devil ; />o>V\ 

 a shrub]. A genus of plants of the order Palvuc. D.. 

 draco, Plume, a palm of Malaya ; the inspissated 

 juice constitutes the finest dragon's-blood. D. 

 grandis, Mart., same habitat as D. draco, affords a 

 variety of dragon's-blood. 



Dahlia {dah'-le-ah) [Da/il, a Swedish botanist]. A 

 genus of composite plants. The roots of several 

 species are edible, diuretic, diaphoretic, and carmina- 

 tive, and furnish a purple coloring-matter. The bulbs 

 of D. variabilis, Desf., a Mexican species, yield white 

 inulin (q. v.). D. -paper, a purple test-paper made 

 from several species of Dahlia ; acids change its color 

 to red and alkalis to green. D. -violet. See Pyok- 

 taniii, Blue. 



Dahlin (da/d-li//). I. An anilin dye obtained by the 

 action of ethyl iodid on mauvein. It gives a reddish- 

 purple color 2. A form of inulin (Kiliani-Merck) 

 obtained from the roots of Inula Iielcnium, Linn. (See 

 Inulin. ) It is also called Jl/enyaut/i/n, Alan/in, 

 Sinistrin, Syantherin. 



Dal fil [Arabic, swollen leg]. A native name for ele- 

 phantiasis arabum. 



Dalbergia (ital-ln/r'-je-ah) [.V. Dalberg, Swedish physi- 

 cian (1730-1829)]. A genus of tropic leguminous, 

 papilionaceous plants. D. sissoo, Roxb., a useful 

 timber tree of India and Afghanistan. The raspings 

 of the wood are employed as an alterative. D. sym- 

 pathetica, Nimmo. , a tree of the East Indies. An in- 

 fusion of the bark is administered in dyspepsia ; the 

 leaves are applied externally in leprosy and other cu- 

 taneous diseases and internally as an alterative. The 

 seeds yield an oil used in rheumatism, and the milky 

 juice of the root is applied to ulcers. 



Dalea (da'-le-ah) [Samuel Dale, English physician 

 ( 1650-1739)]. A genus of plants of the order Pegu- 

 minosce. D. emoryi, A. Gray, a species found in 

 Mexico and California ; the branches yield a yellow- 

 ish-brown dye. D. fruticosa, G. Don., a species 

 found in Mexico and the West Indies ; the fragrant 

 leaves are used as a substitute for vanilla. D. poly- 

 phylla, Mart, and Gal., a Mexican species employed 

 as an antiperiodic. 



Daltonian [dot-ton' -e-an). I. Pertaining to John Dal- 

 ton, an English chemist (1766-1844). 2. A color- 

 blind person. 



Damar, Damaria {dam' -at; dii/u-a'-re-ah). See Dam- 

 mar (Illus. Diet.). 



