MESOBRACHYCEPHALIC 



359 



METASTANNATE 



Mesobrachycephalic {mes-o-brak-e-sef-al'-ik). See 

 Mesocephalic (Illus. Diet.). 



Mesobregmate [ines-o-breg'- mat). Relating to a mes- 

 obregmus skull. 



Mesogamy (tnes-og' '-am-e) [fieaoc, middle ; yduoc, mar- 

 riage]. A term applied by Longo (1901 ) to the pro- 

 cess of pollination in Cucurbita, in which the pollen 

 tube traverses the tissues of the funiculus and outer 

 integuments before entering the micropyle. Cf. 

 Chalazogamy, Porogamy. 



Mesohyloma {mes-o-hi-lo' -mah). See under Hyloma. 



Mesoileum (nies-o-il'-e-um). The mesentery of the 

 ileum. 



Mesojejunum {mes-o-je-ju? -num). The mesentery at- 

 tached to the jejunum. 



Mesolepidoma ^mes-o-lep-id-o' -mah). See under Lep- 

 idoma. 



Mesological (mes-o-loj'-ik-al) [fiiooc, middle; '6)0$, 

 science]. Pertaining to environment in its relation to 

 life. 



Mesoneuritis (mes-o-nu-ri'-tis) \jiiooc f middle; vevpdv, 

 a nerve]. Inflammation of the structures contained 

 between a nerve and its sheath. M., Nodular, a form 

 in which there are nodular thickenings on the nerve. 



Mesoomentum {nies-o-o-men' -turn). The mesentery of 

 the omentum. 



Mesophilic {mes-o-fil' -ik) [ukaoc, middle; di/^iv, to 

 love]. Applied to microorganisms which develop best 

 at about body-temperature, 35°-38° C. Cf. Psychro- 

 philic ; Thermophilic. 



Mesophloem [rnes-o-fie' '-urn) [uiooc, middle; o/.oioc, 

 bark]. The middle layer of bark ; in many plants it 

 is rich in cinenchyma or lactiform vessels. 



Mesopneumon ( mes-o-im'-mon) \_ueaoc, middle ; ~iei- 

 fiuv, lung]. The fold of the pleura attached to the 

 lung. 



Mesostaphylic (ines-o-staf-W -ik). See MesostapAyline 

 (Illus. Diet.). 



Mesosystolic {mes-o-sis-tol'-ik) [uecoc, middle; ava- 

 ro'/i;, systole]. Relating to the middle of the systole. 



Mesotan \mes'-o-tan). The methyloxymethyl ester of 

 salicylic acid ; a clear yellowish fluid used in treatment 

 of rheumatism by dermal absorption. Application 

 1-2 dr. mixed with olive oil or castor oil. 



Mesotendon (wes-o-ten'-don) \tikaoq, middle; tendo, a 

 tendon]. Folds of synovial membrane extending to 

 tendons from their fibrous sheaths. Syn., Mesenteriola 

 tendinum. 



Mesotropic {mes-o-trop'-ik) [uiooc, middle ; Tpirren; to 

 turn]. Turned or situated mesad. 



Mesoxalate {mes-oks' '-al-dt). A salt of mesoxalic acid. 



Mespilodaphne {mes-pil-o-daf 'tie). See Ocotea. 



Mesua (mes'-u-aA) [J. Musuah, Arabian physician]. 

 A genus of guttiferous trees. M. ferrea, L., naga- 

 kesara, nagchampa, nagecuram, nagasampagi, indige- 

 nous to India. The bark and root are sudorific ; the 

 seeds of the edible fruit furnish oil used as an applica- 

 tion in rheumatism. The petals are used as a stimu- 

 lant, astringent, and stomachic. The stamens are 

 sold as Nag-Kassar. 



Mesuranic (mes-u-ran'-ik) [uiaoc, middle; ovpavioitos, 

 the roof of the mouth]. See Mesostaphyline (Illus. 

 Diet. ). 



Metaamidophenylparamethoxyquinolin {met-ah- 

 am-id-o-fen-il-par-ah-meth-oks-e-k-irin'-ol-in). An an- 

 tiperiodic and antipyretic drug used instead of quinin. 

 Dose, 4-8 gr. (0.26-0.52 gm. ). 



Metacetone (met-as'-et-on). See Propione{ Illus. Diet.). 



Metachromatic [met-ah-kro-maf '-ik) [.urrd, beyond; 

 Xp£>ija, color]. Relating to a change of colors ; stain- 

 ing with a different shade than that of the other tis- 

 sues, as the mast cell granules with basic anilin dyes. 



Metacresol. See Metakresol (Illus. Diet.). Syn., 

 Metacresylic acid; Metaoxytoluene ; JMetamethyl- 

 phenol. It is stronger than carbolic acid and less toxic. 

 Dose, 1-3 n\ (0.06 0.2 c.c ). Applied in ) z r ( so- 

 lution. M.-anytol, a 40 f ( solution of metacresol in 

 anytol ; recommended as an application in erysipelas. 

 M. Bismuth, Bi(C 7 H.O) 3 , an antiseptic and astrin- 

 gent used in dysentery. M.-cinnamic-ester, an an- 

 tituberculous compound of metacresol, 25 parts ; cin- 

 namic acid, 35 parts ; dissolved in toluol and heated 

 with phosphorus oxychlorid, 20 parts. 



Metadiphtheric (met-ah-dif-ther'-ik) [uerd, in connec- 

 tion with, along with]. Accompanying diphtheria. 



Metaelements (met-ah-el'-e-ments). A hypothetic 

 group of elemental substances intermediate between 

 the elements as now known to us and protyl. 



Metaisocymophenol {met-ah-is-o-si-mo-fe'-nol). See 

 Carracrol. 



Metal. (See Illus. Diet.) M., Babbit's. See Bab- 

 bit (Illus. Diet.). M., D'Arcet's, an alloy employed 

 for filling teeth and in the making of dental plates. 

 It consists of bismuth, 8 parts ; lead, 5 parts; and tin, 

 3 parts. It fuses at 212° F. M., Dutch, an alloy 

 consisting of copper, II parts; zinc, 2 parts. M., 

 Fusible, alloys having a base of bismuth and cadmium 

 which melt at low temperatures, l30°-250° F. 



Metalbumin (met-al '-bu-min). Sherer's name for 

 what is now called pseudomucin. 



Metaldehyd (met-al '-de-hid). C 6 H 12 3 . White nee- 

 dles, obtained from aldehyd by action of hydrochloric 

 or sulfuric acid at a temperature below o° C. It is 

 soluble in chloroform or benzene, slightly in alcohol or 

 ether; sublimes at II2°-II5° C. It is sedative and 

 hypnotic. Dose, 2-8 gr. (o. 13-0.52 gm. ). 



Metallesthesia (met-al-es-the'-ze-ah) [uira'/'/ov, metal ; 

 aiafitiGic, perception by the senses]. An alleged form 

 of sensibility enabling hysteric or hypnotized subjects 

 to distinguish between the contacts of various metals. 



Metallochrome {met-al' -o-krom) \uk-a'/'/ov, metal ; 

 Xpitfia, color]. A tinting imparted to metal by a 

 filmy deposit of lead oxid. M. Powder, flake white; 

 china white, a powder containing 50^-60*7 of white 

 lead used in making transfers for potter}*. The work- 

 ers frequently suffer from lead-poisoning. 



Metamerism. (See Illus. Diet.) 2. The process 

 of the transverse division of an embryo ; the formation 

 of metameres. 



Metanucleus (met-ah-ttu'-kle-us) [ucra, beyond ; nu- 

 cleus]. Hacker's { 1892) term for the egg-nucleus 

 after its extrusion from the germinal vesicle. 



Metaphosphate {met-ah-fos' -fat). A salt of metaphos- 

 phoric acid. 



Metapneumonic (met-ah-nu-mon'-ik) [j^erd, after; 

 pneumonia]. Subsequent to pneumonia. 



Metapyretic virt-ah-pi-ret'-ik) [fitra, in company with ; 

 - -6f, burning heat]. 1. Occurring during fever. 

 2. Occurring after the decline of fever. 



Metarabin (met-ar'-ab-in). See Cerasin (Illus. Diet.). 



Metargon (met-ar'-gon) Taera, in company with ; ar- 

 gon]. A gaseous element discovered by Ramsay and 

 Travers, 1900, associated with liquid argon. Atomic 

 weight, 40. 



Metasitism (met-as'-it-izm) [uera, beyond; cincfia, a 

 feeding]. In biology a process of nutrition -change 

 taking place in the evolution of animals from plants, 

 in which certain plants begin to absorb and assimilate 

 parts of other plants, thus changing from an inorganic, 

 carbon-dioxid diet to an organic mode of nutrition. 



Metasol {met'-as-ol). Soluble metacresol-anytol, con- 

 taining 40^ of metacresol. A surgical disinfectant. 



Metastannate [met-ah-stan'-at). A salt of metastannic 

 acid. 



