

ARCHECPTOMA 



107 



ARCHOSYRINX 



isms from non-living matter. See Generation, Spon- 

 taneous : Biogenesis, and Abiogenesis. 



Archecptoma (ark-ek-to' '-mah) [apxoq , anus ; ek, out ; 

 -rijua, a falling]. Prolapse of the rectum. 



Archegenesis (ark-e-jen'-es-is). The same as Archebi- 

 osis. 



Archegonium {ark-e-go* '-ne-um) [apx'l, first ; yovoq, 

 race]. The female reproductive organ of the higher 

 cryptogams. 



Archegony (ar-keg / -o-ne) [apxe yovoq, first of a race] . 

 The doctrine of spontaneous generation. 



Archenteric (ark-en-ter'-ik) [apx'l, first ; lirrepov, in- 

 testine]. Relating to the archenteron. 



Archenteron (ark-en' -ter-on) [apx'l, a beginning ; 

 bnzpov, intestine]. In biology, the embryonic ali- 

 mentary cavity. The entodermal sac of the gastrula ; 

 archigaster ; ccelenteron. 



Archepyon (ar-ke-pi'-on) [apxv, a beginning; —ior, 

 pus]. Pus that has become caseated, or so thick that 

 it does not flow. A term proposed by Roswell Park. 



Archespore, Archesporium (ar'-ke-spor, -e-um) [apx'l, 

 a beginning ; o~—opa, a seed]. In biology, the cells 

 that give rise to the lining of the anther-cell and to 

 the mother-cells of the pollen. 



Archesthetism (ark-es' '-thet-izm) [apxv, first ; aiodavE- 

 otiai, to perceive]. The doctrine that animal move- 

 ments are primitively determined by sensibility or 

 consciousness. 



Archet (ar-chef or ar-sha') [Fr.]. A bow formerly used 

 to operate the drill in lithotrity. 



Archetype (ar'-ke-tip) [apxv, a beginning ; rarof, a 

 type]. In comparative anatomy, an ideal type or form 

 with which the individuals or classes may be compared. 

 A standard type. 



Archhydra (ark-hi'-drah) [apxv, first; vdup, water]. 

 A primitive polyp. 



Archiater (ar-ke-a'-ter) [dpxiarpoq, a chief physician]. 

 The head physician in a court, as in that of Russia. 



Archiblast (ar f -ke-blast) [apxv, first; J/.acroq, germ]. 

 In embryology, the granular areola surrounding the 

 germinal vesicle. It is composed of three layers, the 

 outer, or epiblast, from which the skin and its adnexa, 

 the nervous system, and the terminal portions of the 

 alimentary canal are formed ; the middle, or mesoblast, 

 from which the epithelium of the genito-urinary 

 organs and the smooth and striated muscle-tissue is 

 derived ; and the inner, or hypoblast, for the develop- 

 ment of the epithelium of the respiratory tract and of 

 the alimentary canal. 



Archiblastic (ar- ke-blas' '-tik) [apxv, first ; ptaordq, 

 germ]. Derived or supposed to be derived from 

 the archiblast. The parenchymatous elements are 

 regarded as archiblastic. 



Archiblastoma (ar-ke-blas-to J '-man) [apxv, first ; fftao- 

 t6q, germ; bua, a tumor: //. , Archiblastomata']. 

 Any tumor composed of archiblastic or parenchyma- 

 tous elements, such as myoma, neuroma, papilloma, 

 epithelioma, adenoma, carcinoma, etc. 



Archiblastula [ar- ke-blas' '-tu-lah) [apxv, first ; ;3/.acrroq, 

 a germ or bud]. In embryology, a ciliated, vesicular 

 morula, resulting from complete and regular yelk- 

 division and by invagination forming the archigastrula. 



Archicercal (ar-ke-ser'-kal) [apxv, chief; nepoq, tail]. 

 In biology, having the tail primitive, without fin-folds. 



Archicharp (ar'-ke-karp) [apx'l, first ; napndq, fruit]. 

 See Ascogoniutn. 



Archicytula (ar-ke-sitf -u-lah) [apx'l, a beginning ; 

 idrroq, a cell]. A fertilized egg cell in which the 

 nucleus is discernible. 



Archigaster (ar-ke-gas'-ter) [apx'l, first; yaarvp, belly]. 

 The primitive, perfectly simple intestine ; archenteron. 



Archigastrula (ar-ke-gas' -tru-lah) [apxv, beginning ; 



yaarijp, belly]. The gastrula as it is observed in the 



most primitive types of animal development ; called also 



bell-gastrula from its shape. 

 Archigenesis [ar-ke-jen'-es-is). See Arckebiosis. 

 Archil (ar'-kit) [ME. , ore/tell ~\. A coloring matter 



somewhat like litmus, chiefly obtained from the lichen, 



Roccella tinctoria ; used for staining animal tissues. 



See Conspectus of Pigments, under Pigment. 

 Archimonerula (ar-ke-mon-er'-u-lah) [apxv, first; 



[lovrjprjq, single, solitary]. In embryology, a special 



name given by Haeckel to the monerula stage of an 



egg undergoing primitive and total cleavage. 

 Archimorula (dr-ke-mor 1 '-u-lah) [apXv, first ; uopov, a 



mulberry]. In embryology, the solid mass of cleavage 



cells, or mulberry mass, arising from the segmentation 



of an archicytula, and preceding the archiblastula and 



archigastrula. 

 Archinephric (ar-ke-nef'-rik) [apxv, first; vsdpoq, the 



kidney]. Pertaining to the archinephron. 

 Archinephron (ar-ke-nef ' -ron) [apx'l, beginning; 



vstppoq, the kidney]. The primitive or embryonic 



stage of the kidney or renal apparatus. 

 Archipin (ar-kip'-in). See Chibou. 

 Archipterygium (ar-kip-ter-ij' -e-um) [apx'l, first ; irre- 



pov, a wing]. In biology, a ground form, persisting 



in a few cases only, and representing the first and 



lowest stage of the skeleton of the anterior extremity 



of vertebrates. 

 Archistome (ar'-kis-tom) [apx'l, first ; ardfia, mouth]. 



The gastrula mouth or opening to the archenteron ; 



blastoporus. 

 Architis (ar-ki'-tis) [apxog, anus] . Proctitis ; inflam- 

 mation of the anus. 

 Architroch (ar J -ke-trok) [apxv, first ; rpoxoq, a disk] . 



The ciliated band about the mouth of a planula. 

 Archocele (ar'-ko-sel, or ar-ko-se* -le) [apxoq, anus ; 



kj]~atj, hernia]. Rectal hernia. 

 Archocystocolposyrinx, or Archocolpocystosyrinx 



(ar-ko-sis-to-kol-po-sir / -ingks, or ar-ko-kol-po-sis-to- 



sir'-ingks) [apxoq, anus ; kvotcq, bladder ; ko/.-oc, 



vagina; avpiy^, fistula]. Recto-vesico-vaginal fistula. 

 Archometrum (ar-ko-met* -rum) [apxoq, anus ; uerpov, 



measure] . A device for ascertaining the caliber of 



the anus, or for dilating its sphincters. 

 Archoptoma (ar-kop-to / -mah) [apxor, anus ; irraua, a 



fall]. A prolapse of the rectum. 

 Archoptotic {ar-kop-tol' -ik) [ixpxoq, anus; irrufia, a 



fall]. Relating to archoptoma or archoptosis. 

 Archoptosis (ar-kop-to' -sis) [apxoq, anus ; rrruaig, a 



falling]. Rectal prolapse. 

 Archorrhagia (ar-io-ra' -fe-ah) [apx6q, anus ; pyywodat, 



to break out]. Rectal hemorrhage. 

 Archorrhagic {ar-ko-raj' -ik) [apxor, anus ; pr/ywodai, 



to break out]. Relating to rectal hemorrhage. 

 Archorrhea {ar-ko-re'-ah) [apxoq, anus; peiv, to flow]. 



A discharge of blood or of any pathologic fluid from 



the anus. 

 Archos (ar'-kos) [apxoc, the anus]. The anus. 

 Archostegnoma (ar-ko-steg-no / -mah) [apxoq, anus ; 



arryvaetv, to consolidate]. Archostenosis ; a rectal 



stricture. 

 Archostegnosis (ar-ko-steg-no > '-sis) [apxoq, anus ; 



areyvuGig, a stopping]. A rectal stricture. 

 Archostegnotic (ar-ko-ste^-nof -ik) [apxb\, anus ; 



areyvuon, a stopping]. Relating to a rectal stricture. 

 Archostenosis (ar-ko-sten-o / -sis) [apx^q, anus ; arevoq, 



narrow]. Stricture of the rectum. 

 Archostenotic {ar-ko-sten-of '-ik) [apx6q, anus ; orevdc, 



narrow]. Relating to rectal stricture. 

 Archosyrinx (ar-ko-sir> '-ingks) [apxoq, anus ; ovpiyg, a 



pipe]. I. A syringe for the rectum. 2. Fistula in 



ano. 



