MES- 184 
wind-pipe.}_ In birds, the main 
trunk of a bronchus in the lun 
beyond the ventricle : it gives rise 
to secondary bronchi (zool.). 
mesocaecum (més’ a [Gk. 
mesos, middle; L. caecu , blind.] 
The mesentery aniecieanh ‘with the 
caecum (ana 
esocardium ais 6kar'ditim) #, [Gk. 
— middle ; 4ardia, the heart.] 
ms : 
mat.). 
mesocarp okar rp) 7. hot meSOS, 
middle ; farhes <— t.] The middle 
layer of th icarp or coat of a 
Sexi (d0t.). 
socentrous (més' — seta a, [Gk. 
E: ptévosmniddle L. centrum, a centre, | 
Oss se from * ec ortd centre 
anat. 
esochilium (més’6kil'iiim) 7, = 
— middle ; chetlos, a lip.] 
iddle portion of the labellum of 
‘chals s (bo 
mesocoel (mes‘ésél) 7. [Gk. mesos, 
I eee Tolls) The second 
ree main parts of the coelom 
of Maltiace (es z001.). 
carne ag (més 6koTik) a. [Gk.m 
; Solon, the large intestine 
‘the mesocolo n; appl. lymp 
pats (ana 
esocolon an més‘ik o'lén) #. [Gk, 
mesos, middle ; kolon, the large in- 
testine.] A mesentery or fold of 
peritoneum attaching the colon to 
on orgie wall of the abdomen 
anat. 
esocoracoid (més ékér’Akoid) a. [Gk, 
mesos, middle; &, 
; korax, crow ; eidos, 
resemblance.] Situated betwe 
yper- hy coid; 2 
esocycle (més‘6sikl) n. 1% MeSOS, 
— of 
n xylem and phloem 
blast or embryonic layer lying be- 
(cms), the ectoderm and endoderm 
(emb 
mb.). 
sibeiatioatn nese ene 
B 
meschdrophyti 
MES.- 
mesodermal (més’ édér’mal) a. [Gk. 
mesos, middle ; derma, skin.] Pert. 
derive or deve eloping from meso- 
derm 
[Gk. mesos, 
middle ; — bond.] Part of the 
ice nlit e (60 
mesodont eoleelbal) [Gk. mesos, 
niddle’ sett tooth. ] Appi. stag- 
beetles ‘hav ing a medium develop- 
_ of mandible So recog (zool.). 
er s' 
sogaster és'6 ér) Gk. 
amas middle ; alten relly] The 
mesente proper, or fold of peri- 
toneum supporting the stomach 
(anat wah 
e (més — ‘trik) a. [Gk. 
esogas 
— eiilec vr, belly.] Pert. 
me esogaster ee yi so as strium ; 
Sire the middle gastric region 
t.). 
— 
esogastrium (més dgds’triiim) 
Gk. mesos, middle ; gaster, belly.| 
embryo (emmé.) ; * middle ab- 
ana. 
mesogloea (més Beles [Gk. mesos, 
postr gloia, glue 
The lateral segmen 
bearing the lateral i incisor ene 
esohepar (més ig [Gk. 
MeSOS, mene Lhe: an, Ye 
mes or ery supporti ng the liver 
(ana 
(més’6hi'drofit’ik) 
mesos, middle; hydor, 
wneits ; phyton, pl i 
requiring 
bot. 
eso. thal (mésoleyithil) a. [Gk. 
mesos, middle; Jekithos, yolk of 
gg-| A eggs with yolk in the 
ait e (em 
pHi {més nm. [Gk. mesos, 
lo ages, discourse.] _ Bio- 
ation between or- 
re (més’émér) 7. [Gk. me MESOS, 
middle ; meros, part.] pleas ong 
ag of t e coelomic pou 
the embr me a cana: ae oe 
or prbavtetbben (emb.). 
