MER- 
part ; sforos, seed.] A segment or 
spore of a multicellular spore-body 
bot.). 
meristele (mér’ ville nm, [Gk. merch: 
part; stele, att A. Se rate 
part sie mon stem aise 
outwards oon stele to leaves ; the 
branch of a stele supplying a leaf 
ot. 
meristem (méristém) 7”. [ 
meristes,a divider.] Tissue formed 
- cells all capable of division, as 
at grow ing points; meris- 
matic oF = ristemat tic t 
a 2 divi er. | wa or con- 
sisting of meristem; api. tissue, 
cells of growing point ; merismatic 
ot.). 
— Se a. [Gk. meristes, 
a er.] — divided 
oti into pats (dot. 
ce variat: ion,—changes in the 
Yan oer of parts or segments, and 
in the geometrical relations of the 
parts; cf substantive variation 
(dio/.). 
metic (méris’ tojénét Tk) a. 
Gk. meristes, a divider; genests, 
descent.] Developing from mer- 
—— z.). 
— (mérithal’tis) #. [Gk. 
vos, part ; ra young shoot. ] 
“8 sr de (d0t.). 
m rse,—the horny floating 
or reay soit envelope of skates and 
ool.). 
pas (zo 
a (mér’6blas’ ~ a. [Gk. 
» Part; d/astos, bud.] A pp. 
ova which undergo only ig 
segmentation or cleavage in de- 
connie (zool.) ; Serciowine. from 
rt of the ara only (402.). 
omen mé€ros rit) 2. [Gk. meros, 
thigh; eras, heen} The fourth 
Geol) of crustacean antennae 
merocyte ee n. [Gk. meros, 
part ; ‘ayto, b ollow.] A nucleus 
lying in e yolk, directly below 
the te a in a 
ovum (cyz.). 
™ 
meroblastic 
gastrula (m mér’égas’ troola) 7. 
[Gk. meros, Si 
stomach, 
182 
MER- 
meros, part ; poesia, to produce. ] 
Formation of par segmentation. 
merognathite (mér’ Sg aath t) 2. an 
aoe pat ape jaw.] 
fourth segm of a ee 
mouth-part ‘(00 ). 
merogony (merég’éni) 7. [Gk. sc ba 
art ; go fo) 
meroistic Sete dis'tik) a. 
part. ] certain insect ovaries 
which i Hie 3 aa cells 
in — to ova (zo 
mero hosis (m Sr omby fosts) n. 
[Gk. m meros, part; sonphos sua 
Regeneration of a part when 
new pert is less than that Roe 
meront (méront’) 2 [Gk mer 
being. ninucleate 
a Saag -stage in Neosporidia suc- 
ceeding the planont-stage, which 
multiplies by fission 
ganze (mér oplang etn) n. 
Gk. par plangktos, 
wandering]. aR living only 
pert -time near the surface (40+, 
mer prams (mérdp’édit’) #. [Gk 
meros, thigh; Ag oot.] The 
fourth segment of a thoracic ap- 
The fourth peanan of a crustacean 
_ appendage (zool.). 
(me Bt See a. 
mick. pone part; soma, body.] 
ivi tte 
two regions, thorax and abdomen 
(zool.). 
merosome (mér’ésdém) 7. [Gk. meros, 
veleahan (mérot = nm. [Gk. meros, 
ut.] Segmenta- 
part; zoom, animal. cel 
division- erode of a schizont in 
Sporozoa (zool.). 
merozoon (mér’6z6’5n) 2. [Gk. meros, 
