nietaplasm 
(ft) Fnniiiit ion of un oblique case or cases from 
st.. mother than that of the nominative. 
metaplasms (met'a-plainn), . [< (ir. pit 
after, + Tt'/nniiii, something molded: seo/J/fljrtw.] 
In /;/., protoplasm containing certain carbo- 
hydrates whieh are cvontually separated from 
it in the formation of cell-walls or as secre- 
tions. 
The metttflium of llanitcin, I. o. that part of the proto- 
plasm whirh in> ic is the- fnniintive material, U coion-d ui- 
most scarlet by Hanstein's aniline violet. 
1 mlten. Hut. Micron,!, (trans.), p. 82. 
metaplast (met'a-plast), H. [< Gr. fitra, over, + 
irfaoT6(, verbal adj. of JrAaaaetn, form, mold. Cf. 
metaplaxHi 1 .] In ynim., a word or the stem of a 
word exhibiting metaplasia. 
metaplastic(met-a-plas'tik),. [< metaplast + 
-ic.] Pertaining to, exhibiting, or character- 
ized by metaplasm. 
metaplastology (met'a-plas-tol'o-ji), n. [< 
Gr. fiera, over, + nfaoTk, verbal adj. of vMoouv. 
form, + Or. -Aoj'm, < Myeiv, speak: see -olnyy.] 
The doctrine or science of metaplasia. 
Haeckel used also the term Anaplastology for the physi- 
ologtcal relations of the stages of progressive growth and 
the support of the carapace. In man, In whom It is nidi- 
those of the senile stages and the I'aracme of gi 
Ann;: Nat., X Xi I. 882. 
metapleur (met'a-plo'r), n. [< Gr. fitrd, behind, 
+ jr/.tipd, the side.] A posterior part or ex- 
tent of the lateral epipleura or epipleural fold 
of Ampliioxux, behind the preoral epipleura ; the 
atrial epipleura, corresponding in extent to the 
atrial cavity. Kiicyc. Brit., XXIV. 184. 
metapleural (met-a-plo'ral), . [< metapleura 
+ -at.] 1 . In en torn., posterior and lateral, as a 
portion of a metathoracic segment; of or per- 
taining to the metapleuron. 2. Of or pertain- 
ing to the metapleur. 
metapleuron (met-a-plO'ron), N.; pi. metapleu- 
ra (-rft). [NL., < Gr. firra, with, + v~/vp6v, a 
rib.] In entom., the lateral or pleural division 
of the motathorax ; a metathoracic pleuron of 
an insect. Each metapleuron, right and left, is divided 
Into three aclerites an episternum, an epimeron, and a 
parapteron. 
metapneustic (met-ap-nus'tik), . [< Gr. perd, 
behind, + irvtveriKAt, of or for breathing, < irvetv, 
breathe: see pneumatic.] In entom., having a 
single pair of spiracles or breathing-orifices, 
situated at the anal end of the body, as certain 
larvse. 
metapodia. . Plural of metapodium. 
metapodial (met-a-po'di-al), a. and . [< NL. 
metapodialis : see metapodialia.] I. a. I. Of 
or pertaining to the metapodialia. 2. Of or 
pertaining to the metapodium of a mollusk. 
II. n. One of the metapodialia; a metacarpal 
or metatarsal bone. 
metapodialia (met-a-po-di-a'li-a), . pi. [NL. 
(Marsh, 1880), neut. pi. of metapodialig, < meta- 
podium, q. v.J The bones of the metacarpus 
and metatarsus, taken together, and collec- 
tively considered as a segment of the fore or 
hind limb intervening between the mesopodia- 
lia and the phalanges. See cpipodialia. 
metapodium (met-a-po'di-um), n. ; pi. metapo- 
ilin (-a). [NL., < Gr. fter6, behind,-!- jroi? (iroi-) 
= E./oot.] The posterior one of the three sec- 
tions into which the foot of some mollusks, as 
gastropods and pteropods, may be divided : cor- 
related with meKi>iii>iliiiiii and jiropodium. 
metapolitics (met-a-pol'i-tiks), . [< Gr. ami, 
1 yond, + jro/Ur<K<5, politics: see politics.] A 
purely speculative treatment of politics unre- 
lated to practical questions. I'nli riiliji'. 
Metapontine (met-a-pon'tin), a. and n. [< L. 
M<'tii/>iinliiiiifi.<. Mctiip<iiHM,( <!r. Htraxfmev, a 
city in Italy (see def.), orig. neut. of ufrair6vriof, 
in the midst of the sea. < P?T&, amid, + v6vrof, 
sea.] I. n. Of or pertaining to Metapontum or 
Meta|ioiitiuni, an ancient city of Magna Gnecia 
in Italy. 
displays the owl, . . . every Met- 
The Academy, Feb. 25, 1888, p. 139. 
Of 
cut under (utnAor. 
metapore (met'a-por), n. [< NL. metaporug. < 
Or. pra, behind, + wipof, passage: wo pore*.] 
A -mall blind pore in the median line of the 
medulla oblongata immediately behind the pons 
Varolii; the so-called foramen of Magendie. 
metaporus (me-tap'o-rus), .; pi. iiir>iipttn(-A). 
[NL.] The metapore. II. <l. H'iliii ,: 
me tapostscutellar (met'a-POHt-sku'tel-lir), a. 
[< t,ip,,xt><rul<-llMiH + -ar$.] Of or pertaining 
to the metapostscutellum. 
metapOStsCutellumOnet-a-post-sku-tel'um), 
. ; pi. w -M//f>v.'/<7/r; (-'). [NL., <C Gr. /ura, 
behind, -f NL. poKtri,t< ////<, q. v.J The post- 
scutellum of the metanotum ; the postscutellar 
sclerite of the metathorax of an insect. 
metaprae8cutal(met*a-pre-8ku'tal),. [<mte- 
prWMriW* + -oi.] Of 'brpertaining to themeta- 
prwscutum. 
metapraescutum (met/'a-pre-sku'tum), n. ; pi. 
meta prawn ta (-ta). [NL., < Or. ptra. behind, + 
>;]_,. pnMMltMM, q. Y.J In entom., the prwscu- 
tllm of tho nietauotum; the pra>scutal sclerite 
of the metathorax. 
metapsyche (met-ap-si'kt'), n. [NL.,< Or. pro, 
behind, + V"'*'/, soul: see Psyche.] Haeckel's 
name for the hind-brain or cerebellar segment 
nf thn pnoAnliBlon the n>teni>i>nlialnii 
' no encepnalon , the metenceplialon or epen- 
eplialon. 
metapsychosis ( me-tap-si-ko sis). .; pi. metiip- 
v//-//.se (-sez). [NL., < Gr. /fera^uxuat^, a trans- 
fer o* so "l from one ^^y to another, < /rd, 
over, -t- ^/'^(jo-ff, a giving of life or spirit: see 
psyehosts.] The supposed action of one mind 
U P OU another without any known physical 
means of communication, or its effect. See 
1'xychosis and telepathy. 
U would be . grave reta-xlation of science were it as- 
unied that this strange metaptychosit was a medical curl- 
08ltya | one Proc. $x. 1'sych. Research, IIH&. 
. 
metapterygiaUme-tap-te-rij'i-al) ^[< W 
teryi/inm + -/.] Of orpertaming to the metap- 
terygium: as, metapterygial basalia. 
metapterygium (me-tap-te-rij'i-um), .: pi. 
metapterygiit (-a). [NL. (fluxley. 1871), <Gr. 
//mi, behind, + NL. ;<fe>r(/i/i,q. v.] Thehind- 
most of several basal cartilages which the ptery- 
gium of a fish, as an elasmobranch.may present, 
BttBOferwteM. 
metapteiygoid (met-ap-ter'i-goid), a. and n. 
[< Gr. pera, after, + E. pterygoid .] I. a. Com- 
inir after or situated behind the true ptery- 
goid. 
A median or pterygoquadrate portion, which grows for- 
wards In front of the tnetapterygoid portion. 
Mimrt, Encyc. Brit, XXH. 114. 
II. M. A metapterygoid bone. 
metaptosis (met-ap-to'sis), n. [NL., < Qr.fttra- 
KTUOIC, a change, < ueraTriirrttv, change. < uerd, 
over, + mVri>, fall, > TTTdxr/c, a falling.] In logic, 
the change of a proposition from being false to 
being true, or the reverse. 
metarabin (me-tar'a-bin), M. [< Gr..frd, be- 
yond,+ E. arabin.] The gum of cherry-, plum-, 
and almond-trees. Its chemical relations are 
not yet determined. 
Metarrhiptae (met-a-rip'te), n. pi. [NL., < Gr. 
ptTappix-Tetv, turn over, turn about, < fttra, over, 
+ p'nrreiv, throw.] An order of acephalous or 
conchiferous mollusks founded upon the fam- 
ily TridatHid*. In these gigantic bivalve, the body 
ta apparently turned half-way ronnd whence the namt 
metagtoma 
metasilicate (met-a-sil' i -kat), . [- "" '" 
*''''-'' + -'"''-I A" suit nf tin- hypothetic, I 
nu-tasili,!, a-i.l H,.Sio., : ,,ft,. .-alleM in miner- 
"logy a bisili<-iiie : as, ral'-imn ni<-tn*ilifiiti 
mineral wollaston it e. CaSK i : , <.r i'a' >.SiO a ). 
metasilicic (inet'a-xi-liM'ik), a. [< Gr. pera, 
with, + K. ttUetc.] A word used only in the 
phrase mettwilii-ii- ,/,/</. See meta*ili<-nii: 
metasoma (met -a-RO'mft), n.; pi. metaxomatii 
(-ma-tji). [NL.: see metagomr.] Same act m<?iVi- 
meta80matic(inet'a-s6-mat'ik),a. [<metasoma 
(-snmat-) + -ir.] 1". Of or pertaining to the 
metasome of a cephalopod. 2. Pertaining to 
or resulting from metasomatism: as, metano- 
matte rocks. 
metasomatism (met-a-sd'ma-tizm), n. [As 
metasomat(oirig) + -Him".'] Same as metasomato- 
ffe, 
metasomatosis (met-a-so-ma-to'sis). n. [LL., 
< (ir. pro, over, + ffij//a (ow/ior-), body.] In 
litlm!.. a term used by a few writers on ehem- 
ical geology with various shades of meaning, 
but chiefly in propounding certain theories of 
the transformation of one rock into another of 
a very different kind (as of limestone into 
granite), changes recognized as possible by 
but few geologists. See metamorpliiimi. 
Although the crystalline rocks ... have been rappowd 
to be occasionally the subject of wide-spread mettuomalo- 
. w y properly restrict the title of a genenl meUo. 
m ^. c SSffS to that which .eeks to explain the deri- 
vatlon of the principal cr>ntalline sllicaiwl rocks from 
ilmeatones. 
T. S. //(, Mln. Physiology and Physiography, p. 106. 
metasome (met'a-som), n. [< NL. metasonia, 
< dr. ptra, after, 4- aufui, body.] The posterior 
part of the body of a cephalopod, which is 
enveloped in the mantle and contains the vis- 
C era. The name is also given to the posterior part of 
the body of bivalve ii.oll.isks behind the mesosome and 
( 
(inet-a-f tan at), M. 
xtniinic + -flfrl.l A salt of metastanuic acid. 
motaatnTinip rmpt a. < r,r urra 
hydrate or acid produced by digesting tin in 
"'tnc acid. It is isomenc with stannic acid, 
but quite different in its properties. 
metastasis (me-tas'tfi-sis), . [NL., < fir. /te- 
Taaraaif, a. removal, change, departure, < pef)- 
""ami, Pt in another place, change, remove, 
< f tr ^ over - + ' OTI "" 1/ . place: see stasis.] 1. 
Change of substance; conversion of one sub- 
stance into another. 
H considers what not infrequently happens in distent- 
P 6 * 1 bodies bv the '<"*" <' 
_ 
2. In patliol., the production of local disease 
in some part of the body from a focus of more 
or less similar disease in some other part not 
immediately adjacent.- 
metastatlC (met-a-stat ik), a. [< metagtasm 
(-at-) + -ic.] Of or pertaining to metastasis; 
characterized by or consisting in metastasis. 
Those meiantatic changes which take place in the ordl- 
owth of plants or the 
metastatically (met-a-stat i-kal-i), adv. By 
metastasis. 
metasternal (met-a-ster nal), a. 
"'"" + -"'] cntnm., metathoracic and f 
nalorventral, as ascleriteof an insect's thorax ; 
of or pertaining to the metasternum Metaster- 
metarrhiptous (raet-a-rip'tus), a. Of or per- 
taining to the 3tetarri>iptfe, or having their char- 
ac-ters. 
metascuta. n. Plural of metascutiim. 
mctascutal (met-a-sku'tal), a. [< metasculum 
+ -al.] Of or pertaining to the metascutum. 
metascutellar (met-a-sku'tel-Sr), a. [< meta- 
sfiitfllHm + -ar a .] Of or pertaining to the meta- 
, /, + ,n Of or irtainine to a meta 
P,ph y i ' 
metascutellum (met'a-sku-tel'um), M.; pi. 
^" S "' MI (-) [NL < G-r.^rd, beyond + 
^^ s< -'"'""'"- '! v 'l In entom -' the scutellum 
of the mei * ium i the scutellar sclerite of the 
hale a musky odor produced by scent-organs within the 
body. Also called ctnt-pon. 
metasternum (met-a-ster'num), .: pi. meta- 
sti-rnii (-nil). [Slt.,('GT.ptTa, behind, + artpvw, 
breast, > NL. utrrnum, q. v.] 1. In anat., the 
hindmost segment or last sterneber of the 
breast-bone ; the xiphisternum, in man repre- 
sented by the xiphoid cartilage or cngiform ap- 
/ii-iiiliii/i 1 . 2. In entom., the sternite of the met- 
athorax; the median part of the postpectus. 
metasthenic (met-a-sthen'ik), a. [< Gr. fttrA, 
behind, + odevof, strength, might.] Strong in 
the hinder parts ; having the strength or weight 
of organization behind the middle of the body, 
In 
alon g with, + .*tih,t,: } Ainiin.mv trisulphid, 
occurring as an amorphous reddish coating 
1- , r - of , < r- ,r,,., H v i, tl m 
"pw 
bar region. It corresponds to tin 1 inner tubercle of the 
dlapophysis of thom.-U- vert, lira. It is sometimes very 
highly developed, as in the armadillo, whea it assists ill 
( - f >- LM'-<Gr. f rri, beyond, + N 
q - V ' ] I" ''"'-. tl>e wutum or upper division 
f the raetathorax - ' h " Principally j.d In upon silicious sinter at the Steamboat Springs, 
descriptions of Hymmoftrra. Diptera, and Xeuroptera, Washoe countv Nevada. 
in which the metascutum n^'nt-rally forms an oblique or .. '/ ,' 1 f 
vertical surface behind the wings and above the insertion metastoma (me-tJ i to-ma). H.. pi. 
of the abdomen. (met-a-sto ma-tS). [NT>., < <ir. //e 
//era, behind, 
