DUR- 82 
-fiy 
durw mater (di’ra ma'tér, door’A 
_ — nm. [L. dura, hard ; mater, 
her.] The tough me embrane 
Sing ~_ whole cerebro-spinal 
Cavity (ana 
ura s h eo 
daa the cite cokes (an 
duramen a mén) 7 
. harden.] The 
ery region of a tree- stem ; 
fice wood (407). 
warf male,—the small three- or four- 
he andro- 
ium (407.) ; asmall, 
imply formed, individual in 
s, either free 
[L. ar taeen 
« ard, darker 
the 
half of a tetrad group (cyz.) 
dyaster Sl Astér) Nn. ie dyas, two ; 
ter, star.] “The double group of 
during the anaphases 
of cell-division ” (cyZ.). 
dyne ve - [Gk. dynamis, power. ] 
of force in the C.G. sy 
a 
LYS.) 
se meagre oe mn. [Gk. dys, 
ae An aggregate 
rogenesis (ats! inane) n. 
“Tok @ S, hard ; meros, part ; gene 
i Segmen tation park ae mH 
unlike parts (dzo/.). 
nao xidize ats st) v. [Gk. dys. 
hard ; oxys, sharp.] To find difficult 
to oxidize pigs 5 
dyspn a (dis‘pnéa) x. [Gk. dys, 
ard; ane to breathe. ] Difficulty 
in breathin ng (phys ine 
dysteleology = téléS'Oji) 7. 
WS, hard; ¢elos, end; 
a 
[Gk. 
purposelessness in nature (éz0/.). 
dzierzon (dzér'tsin)theory,—the belief 
that the males of the honey-bee are 
always produced from unfertilized 
eggs (zool.). 
E 
ear ( [A.S. eare.] The auditory 
Aa pst ict the various structures 
a 
the 
ECH- 
which are close to, or similar to an 
external ear or pinna (zoo/.); an 
ear-shaped structure ; the spike of 
istles or processes, as 
. er corn, etc. 
ebracteate ebeak' ean, ebracteolate 
(€brak’téslat) 
Without bracts, or without 
bracteoles, reduced leaves on the 
flower-stalk (402). 
ee (ékal’ kkrat) a. aoe ex, 
without ; ca/car, spur.] ing no 
spur (zool.) ; with no spur- ike pro- 
cess on the petals (ot. ay 
éka 
oO 
or 
o hin ecardinate 
ouiate. (Gavina) Ge Al 8s, 
out ; carina, keel.] Not pian 
with a keel or keel- like ridge (407, 
ecandate (eké'dat) a. [L. ex, without ; 
auda, Withou 
of ; d/astos, bud.] A prolifenr 
a 7 main axis of an inflores- 
Sasciate led’ ik) a. — ek, out 
of ; demos, people.] Not n 
ecderon (eke déron) nm. [Gk. ¢ 
deros : 
ou 70S, skin] Rcoasanic: 
epiblastic (emé.). 
ecdysis (ékdi'sis) = a ek, out; 
anes, to enter.] The act of moult- 
ing any Paso. re se layer or 
structure (zoo0/.). 
Soot: (&’inat) 2 [Gk. echinos, 
ne. | Pucnished with spines or 
bristles (zool.). 
echinochrome (ék’inédkrim’, éki‘né- 
krom) 7. k. echinos, spine ; 
cave, colour. ] ouri 
ment found in Echinoderms (zoo/.). 
echinoid (ék’inoid, &ki’noid) a. [Gk. 
alt spine.] Pert. sea-urchins 
ool.). 
eshibipesidtienk (€k’in6pé’ditim, éki’nd- 
pé'ditim) 2. [Gk. echinos, spine ; 
pais, child] See dipleurula. 
