ENTOPLASTRON 



431 



EPENDYMAL 



: 



Entoplastron (en-to-p/as* -tron) \ivr6q, within ; plastron, 

 a breastplate : //. , Entoplastra\ In biology, the 

 internal clavicular scute, or anterior median piece of 

 the plastron of a chelonian. 



Entoptic (en-top* -tik) [kvroq, within ; o-tikoc, pertain- 

 ing to vision]. Pertaining to the internal parts of the 

 eye. E. Phenomena, visual phenomena caused by 

 peculiarities or imperfections of the eye itself, such as 

 muscce volitantes . 



Entoptoscopic {en-top-to-skop / -ik) [kvroc, within ; urp, 

 eye ; ono-elv, to inspect] . Relating to entoptoscopy. 



Entoptoscopy (en-top-tos' '-ko-pe) [kvror, within ; uiip, 

 eye; cko-eIv, to inspect]. The investigation or 

 observational study of the interior of the eye, or of 

 the shadows within the eye. 



Entorectomy (en-tor-ekf-to-me) \i\nEpov, bowel ; ctcto/^, 

 excision] . Resection of a diseased portion of the bowel. 



Entoretina {en-to-ret' -in-ak) [kvrdg, within ; retina, 

 retina]. The innermost layer of the retina, itself com- 

 posed of five layers, and an inner limiting membrane, 

 ntorrhagia 'en-tor-a' -je-ah) Tivrdg, within ; pij^vivai, 

 to burst forth]. Internal hemorrhage, 

 ntosternite (en-to-ster* -nit) . See Endosternite. 

 ntosthoblast {en-tos' ' -tho-blast) [evOogBe, from within ; 

 (iAacrdg, germ]. The supposed nucleus of a nucle- 

 olus. 



Entostosis, or Entosteosis {en-tos-to'-sis, -tos-te-o' -sis) 

 [kvrdq, within ; bariov, bone]. An osseous growth 

 within a medullary cavity. 



Entotic (en-tot* -ik) [evtoq, within ; ore, ear]. Pertain- 

 ing to the internal ear. E. Phenomena, sounds 

 caused by abnormalities of the auditory mechanism 

 itself. 



Entotriceps ( en-tot' -re-seps) [kvroq, within; rpslc, 

 three ; Keoa'/r,, head]. The internal head or division 

 of the triceps muscle of the arm. 



Entozoal (en-to-zo'-al) [kvror, within ; r ^ov, an animal]. 

 Caused by or dependent upon entozoa. 



Entozoon (en-to-zo* -on) [hvror, within ; s^° l > an ani- 

 mal : //. , Entozoa]. An animal parasite living within 

 another animal. 



Entrails (en'-lrels) [M.E., entraile\ The bowels and 

 abdominal viscera, 

 ntropium (en-tro / -pe-um). See Entropion. 



Entropion. 



Entropion (en-tro' -pe-on) [ev, in ; rpeTreiv, to turn]. 

 Inversion of the eyelid, so that the lashes rub against 

 the globe of the eye, producing inflammation, pannus, 

 etc. It may be cicatricial, organic, or spastic in origin. 

 E., Superciliary, the incurvation of the hairs of the 

 eyebrow into the palpebral fissure and against the 

 conjunctiva, causing the same symptoms as are present 

 in ordinary entropion. 



Enucleation (e-nu-kle-a* -shun) [e, out of; nucleus, a 

 kernel]. The operation of exsecting or shelling-out 

 from its seat or capsule a tumor, etc. E. of Eye, 

 excision of the eyeball from the orbit. 



Enucleator (e-nu'-kle-a-tor) [e, out of; nucleus, a ker- 

 nel]. An instrument used in performing enucleation. 



Enuresis (en-u-re* -sis) [evovpieiv, to be incontinent of 

 urine]. Incontinence of urine. A frequent affection 

 of early childhood, due to a variety of pathologic con- 

 ditions, including the presence of ascarides, phimosis, 

 and vulvitis. E. nocturna, involuntary emptying of 

 the bladder during sleep. 



Envelop (en'-vel-op) [Fr. , enveloppe\ An investing 

 membrane, or layer. 



Environment (en-vi'-ron-ment) [Fr. enznronner, to 

 surround]. The totality of influences acting upon 

 the organism from without. See Evolution, Factors of. 



Enzootic yen-zo-ot'-ik) [ev,'\w, or among; Z,Cmv, animal]. 

 Affecting beasts in a certain district ; as an enzootic 

 disease. 



Enzooty (en-zo* -o-te) [ev, in, among ; $£xrv, an animal]. 

 An enzootic disease . 



Enzyme (en'-zim) [ev, in; r vur), leaven]. I. Kiihne's 

 name for the soluble ferments. 2. Any ferment formed 

 within the living organism. 3. Any chemic or hydro- 

 lytic ferment, as distinguished from organized fer- 

 ments, such as yeast. Enzymes are most active 

 between 30 and 35 C, and are destroyed by boiling. 



Enzymic (en-zi'-mik) [ev, in ; £17/9, leaven]. The na- 

 ture of the action of an enzyme. 



Enzymosis (en-zi-mo'-sis) [tv, in; $vui], leaven]. The 

 action of an enzyme. 



Enzymotic (en-zi-mof '-ik) [ev, in; r vurj, leaven]. Per- 

 taining to enzymes. 



Eonosos, or Eonosus (e-on' -o-sos , or -sus) [%ljc, morn- 

 ing; voaog, illness]. See. Morning Sickness. 



Eosin (e'-o-sin) [tj£xj, the dawn], C^HjB^Oj. Tetra- 

 bromfluorescein ; an important dye produced by the ac- 

 tion of bromin on fluorescein suspended in glacial 

 acetic acid. It occurs in red or yellowish-red crystals, 

 and is used as a stain in histology. See Fuchsin. E. 

 colors. See Pigments, Conspectus of. 



Eosinophile (e-o-sin' ' -o-fil)[eosin from t/cjt, dawn; Qilelv, 

 to love]. In bacteriology and histology, applied to mi- 

 crobes or histologic elements showing a peculiar affin- 

 ity for eosin-stain. 



Eosinophilous (e-o-sin-off'-il-us) [i]6ic, dawn ; pu.uv, 

 to love]. Staining readily with eosin. Applied to 

 certain granules in the lymphoid blood-cells that stain 

 with acid anilin-dyes. 



Epactal (e-pak 1 -tal) [e^oktSc, brought in]. Interca- 

 lated ; supernumerary ; Wormian. E. Cartilages. 

 See Cartilage. 



Epanetus (e-pan' '-et-us) [iirdveroc, relaxing]. Remittent 

 fever. 



Epanisognathous (ep-an-is-og' -na-thus) [tiri, upon ; 

 aviaoc, unequal ; }Ta8or, jaw]. In biology, having 

 the upper teeth narrower than the lower ones. 



Epapophysis (ep-ap-off f -is-is) [etz'i, upon ; a~ 6<f>v<Jic, ap- 

 ophysis]. A median process placed dorsad of the 

 centrum of a vertebra. 



Eparterial (ep-ar-te / -re-al) [hri, upon ; apTrjpla, artery]. 

 Situated above an artery. 



Epaxial (ep-aks' -e-al) [etvi, on ; axes, axis]. Situated 

 or extending over an axis. 



Epencephal (ep-en'-sef-al). See Epencephalon. 



Epencephalic (ep-en-sef-aP -ik) [k~i, on ; h/KE^al^c, 

 brain]. Pertaining to the epencephalon. 



Epencephalon (ep-en-sef '-al-on) [e-k'i, on ; hyKE6a7.oc, 

 brain]. The after-brain or hind-brain; the cerebel- 

 lum and pons taken together ; or, as some define it, 

 the cerebellum, pons, and oblongata taken together. 



Ependyma (e-pen'-dim-ah) [i-evdvua, an upper gar- 

 ment]. The lining membrane of the cerebral ventri- 

 cles and of the central canal of the spinal cord ; 

 endyma. 



Ependymal (e-pen'-dim-al) [brtv&ufta, an upper gar 

 ment]. Pertaining to the ependyma. 



