Meckel’srodorcart 
MEC- 178 
passage.] A passage or channel, 
as the acoustic or auditory, and the 
nasal meatus (avaz.). 
eckelian cartilage or rod. [After 
Meckel, German anatomist.] The 
ge,—Meckelian 
rod or cartilage. 
um (mék’6nid‘iiim) 7 [Gk 
of the gonangium 
of certain Hydroids zool.). 
media (mé'di [L dese ger ma 
A middle anti such a er 
of tissue, a central nervure . ei 
ool.) ; as - 
uch as eT ores in 
which cultures rs grown (dzo/.). 
mediad (mé’diad) adv. [L. intdins, 
mi ied ‘To wards but oon ae in 
the — line ~ axis (anat.). 
medial ial L. medius, 
aektie. ‘Situated 3 in the ae 
median (médiin) a. L. medius, 
middle.] Lying or running in the 
axial plane ; intermediate ; middle. 
ediastinal (mé‘dias’tinal, -dsti’nal) 
a. [L. mediastinus, a servant. ] Pert. 
or in the region of the mediastinum 
ria cavity, arteries, glands, sh 
mediastinum (mé‘dias’tiniim, -asti’- 
In the oo middle 
medio’ 
[ 
Pert. that portion of the columella 
auris of certain animals external to 
the stapes (anat.). 
BS sch cal a stem (404). 
ulla oblongata. 
os plate, — 
f 
MED- 
mediotarsal (mé‘diétar’sal) a. [L. 
meatus, ; tarsus, ankle. ] 
Between the tarsal bones. 
medioventral (mé’diévén’tral) a. [L. 
medius, middle ; venter, sts belly. ] 
In the middle ventral li 
meditho (Gne’ditha’raks) eee 8 
medius, m Gk. t& , the 
breast.] The middle part of the 
thorax ; the mesothorax of Insects 
) 
eyebulb (avaz.); any of the 
more st less solid Ss in 
which cultures ared or 
tissues are propagated (phys). 
medulla (médiil’a) 7. [L. medudia, 
marrow, pith.] re ee of bones ; 
the central part of an organ or 
tissue (amaz.); the pith or central 
—— posterior 
“-prention ne the brain continuous 
with the _— abril, or spinal 
cord (am 
“oad meas) a, ser medulla, 
h 
pit Pert. or in gion of 
the medulla; appl. i eran 
mina, membrane, bone, spaces 
Fy B 
medullary cana y, —the 
—" eytindrical soetien: of a long 
ne containing marrow (amaz.) ; 
the scacicon (embd.). 
—a groove on the 
up, spent and convert t 00 
into a cana = neurocoe! (emd.). 
Sabine & —a downward growt 
towards he: paiatcrens, the = 
ment of the central nervous syst 
in the development of certain as 
tive vertebrate Ji mo.). 
ck ee 
medullary la: a thi 
layer of the alias of some Lichen 
bot.). 
plate-like 
toderm__ cells 
bardening the Sha yao of early 
embryo; the sorieet rudiment of 
the nervous —_- 
edull 
mb.). 
m ary rays,—a mcdieaest strands 
of cqumectine. tissue extending be 
