MESOPHLEBION 



751 



MESOSTATE 



th 



Mes 



part of the wing-membrane of bats which is limited 

 by the vertical terminal branch of the intercosto- 

 humeral line, by the forearm, and the fifth metacarpal 

 bone and phalanges. Cf. Dactylo-patagium, Ectopata- 

 gittm. ^Allen.) 

 Mesophlebion ymes-o-Jleb' -e-on), Mesophlebium (mes- 

 o-fleb' -e-um) \jikaog, middle ; q'/ifiiov, vein]. I. The 

 middle coat of a vein. 2. The space between two veins. 

 Mesophlebitis (mes-o-fle-bi f -tis) [ueoog, middle ; o'/ity, 

 vein ; trig, inflammation]. Inflammation of the middle 

 coat of a vein, or mesophlebion. 

 Mesophlceum {mes-o-JW-uiu) [fiiaog, middle; o'/.oiuc, 

 bark]. In biology, the green or middle layer of the 

 bark. 

 Mesophragm [mes' -of ram), Mesophragma (mes-o- 

 frag'-mah) [ufffoc, middle; <j>pa)ua, partition: pi. , 

 Mesophragmata\ In biology, a stiff plate between 

 the meso- thorax and the meta thorax in certain insects 

 , bees), giving attachment to part of the muscles 

 f the organs of flight. (Cheshire. ) 

 esophryon (mes-off f -re-on) \ucoog, middle ; o^/oif, 

 eyebrow]. The glabella. 

 Mesophyl (mes'-o-fil) [uiaog, middle ; <pv/./.ov, a leaf]. 

 In biology, all the parenchyma or soft inner tissue of 

 a leaf, between the layers of epidermis. 

 Mesophyllum (mes-o-fil'-um). Same as Mesophyl. 

 Mesophyte (mes / -o-flt), Mesophytum (mes-off' -it-um) 

 ueaog, middle ; (pvrov, a plant : pi., AIesophytd\. In 

 iology, the line of demarcation between the inter- 

 e and the petiole ; the collar. 



ipic [tms-op'-ik) \ukoog, middle; u-ty, face], 

 aving small and retreating malar bones, with a 

 aso-malar index of from 107.5 t° IIQ - 

 soplast I mes* -o-plast) [uiaog , middle ; n/jwrog, 

 erbal adj. of tt/Aggeiv, to form, to mold]. In biol- 

 gy, the nuclear protoplasm of a cell-nucleus ; the en- 

 oplast. 



soplastron ( mes-o-plas' '-tron) [fiiaog, middle; Fr. , 

 lastnvi, a breast-plate]. In biology, the median and 

 nterior plate of the plastron. 



sopleura (mes-o-plu'-rah) [uEGog, middle; r:7xvpa, 

 ib]. An intercostal space. 



sopleurius, Mesopleurus (mes-o-plu' -re-us, mes-o- 

 'u'-rus) [iuckk, middle ; n'tevpa, rib]. Pertaining to 

 e spaces between the ribs. In the plural, the inter- 

 costal spaces. 

 Mesopleuron (mes-oplu'-ron) [uf Gog, middle ; —'tevpov, 

 rib]. In biology, one of the lateral pieces or pleura 

 f the mesothorax of an insect. 



podialia [meso-po-de-a'-le-ah) \jiEGog, middle; 

 '■'*>-), foot]. In osteology, a collective term 

 pplied to the bones of the carpus and tarsus con- 

 sidered as forming a segment of the fore-limb or hind- 

 limb. Cf. Metapodialia. 

 Mesopodium (mes-o-po'-de-um\ [ueooc, middle ; irovg, 

 foot: pi., Mesopodia~\. In biology, the middle region 

 of the foot of a gasteropod or pteropod, as distin- 

 guished from the propodium and metapodium. 

 Mesoprosopic {mes-o-pros-o' -pik) \jiEOog, middle ; 

 '.i-ov, face]. Having a face of moderate breadth ; 

 not chameprosopic or leptoprosopic. 

 Mesopsyche {mes-op-si'-ke) [fiioog, middle; V^^V. 



soul]. Haeckel's term for the mesencephalon. 

 Mesopterygium (mes-op-ter-ij' -e-um) \jikaoq, middle ; 

 . a little wing: //., Mesopterygia\ In biol- 

 ogy, the middle, basal cartilage in the pterygium of a 

 I fish, between the propterygium and the metapterygium. 



Mesoraic (mes-or-a'-ik). Synonym of Mesenteric. 

 Mesorchion (mes-or'-ke-on), Mesorchis {mes-or'-kis), 

 Mesorchium (mes-or'-ke-ttm) [nsoog, middle ; bpxig, 

 testicle]. A fold of the peritoneum containing the fetal 

 testes at about the fifth month, before their descent. 



. 



Mesorcin (mes- or* -sin), Mesorcinol (mes-or'-sin-ol) 

 [fieoiri/c, a mediator], C 9 H ]2 2 . A substance obtained 

 from dinitro-mesitylene. It sublimes in shining leaflets, 

 melts at 150 C, and distils at 275 ° C. 



Mesorectum ^mes-o-rek' -turn) [uioog, middle ; rectus, 

 straight]. The narrow fold of the peritoneum con- 

 necting the upper part of the rectum with the sacrum. 



Mesoretina (jnes-o-ref -in-ah) [peaoc, middle ; retina, 

 retina]. The middle layer of the retina, composed 

 of the nuclear and the rod-and-cone layer. The 

 mesoretina is also called the mosaic layer. 



Mesorhine (mes / -or-in) [fuooc, Vniddle; pig, nose]. 

 Having a nasal index between 48 and 52 . See In- 

 dex. 



Mesorhinium (mes-o-rin'-e-um) [ukaog, middle; pig, 

 the nose : //., Mesorhinia']. In biology, the part 

 between the nostrils, as the beak of a bird. 



Mesoropter [rnes-o-rop* '-ter) [jieong, middle ; bpog, 

 boundary ; OTrreadai, to sleep]. The normal position 

 of the eyes when their muscles are at rest. M., 

 Muscular, the angle formed by the visual axes of the 

 eyes when the external ocular muscles are at rest. 



Mesorrhine (mes / -or-in). See Mesorhine. 



lAesosal , pimL(mes-o-sal / -ping r 6s.) [//«H>f,middle; aa/.Kiy^, 

 a trumpet]. A falciform, double fold of peritoneum 

 bounded above by the Fallopian tube, internally by 

 the lateral wall of the uterus, externally by the tubo- 

 ovarian fimbria and the ligamentum infundibulo-ovari- 

 cum of Henle, and inferiorly by the ovary and the 

 utero-ovarian ligament 



Mesoscapula (mes-o-skap'-u-lah) [fiiaog, middle ; scap- 

 ula, shoulder-blade]. The scapular spine. 



Mesoscelocele (rnes-o-skel'-o-sel) [uioog, middle; 

 GKi'/Mg, leg; tdf/.i], tumor]. Perineal hernia. 



Mesoscelophyma (tnes-o-skel-o-fi' '-mah) [Hfcoc, middle; 

 GKt'/og, leg; ovua, tumor]. A perineal tumor. 



Mesoscelus (wes-os'-iel-us) \uiaog, middle ; oni/ac, 

 leg]. The perineum. 



Mesoscutellum (mes-o-sku-tel'-um) [fikoog, middle ; 

 sciitellnni, a little shield]. In biology, the scutellar 

 sclerite of the mesothorax. 



Mesoscutum (mes-o-sku' '-turn) \_usaog, middle ; scutum, 

 a shield]. In biology, the scutum of the mesonotum. 



Mesoseme (mes f -o-sem) [uiooc, middle; of/ua, sign, 

 index]. Having a moderate orbital index. See In- 

 dex. 



Mesosigmoid (mes-o-sig'-moid) [«£<roc, middle ; oiyua, 

 sigma ; eioog, form] . The mesentery of the sigmoid 

 flexure of the colon. 



Mesoskeleton (mes-o-skel' '-et-on) [uioog, middle ; cue'/.- 

 etov, skeleton]. The internal skeleton of an animal 

 of mesodermic origin. 



Mesosoma (ines-oso* -mah) \ukoog, middle ; ccijia, the 

 body: //., Mesosomata~\. In biology, the middle re- 

 gion of the body. Especially is the term applied to 

 lamellibranchiate molluscs to distinguish it from the 

 prosoma and the mctasoma. 



Mesosperm (mes / -o-sperm) [peoog, middle ; <Tirep[ia, 

 seed]. In biology, the inner coat or integument of 

 the ovule. Cf. Secundine. 



Mesospore (mes'-o-spor) [fiicog, middle ; a~6pog, seed]. 

 In biology: 1. The middle coat of a spore having 

 three coats. 2. A spore of moderate size. 



Mesostaphyline (mes-o-staf -il-in) \jiiaog, middle ; 

 craov'/j,. the uvula]. In craniometry, a term applied 

 to a skull having a palatal index of from 8o° to 85 °. 



Mesostate (mes / -o-stdt) [piaog, middle ; orarog, placed]. 

 A generic term for the intermediate substances formed 

 in the metabolic processes of secretion, nutrition, or 

 cell-metamorphosis, between the less complex forms 

 of the ingesta up to and through those of the highest 

 complexity and instability (anabolism), and back again 



