ABO- 
mature birth.] To be ciate in 
e born ma 
d 
turely (dzo/, 
abortion (3b6r'shitn) nm, [L. abortus, 
premature birth.] Premature birth ; 
arrest of development of an organ 
(biol, 
abranchiate (Abrang’kiat) a. [Gk. a, 
without ; Acme J gills] Without 
gills (zoo/.). 
abrupt (abriipt’) a. [L. ad, from ; rum- 
pere, to break.] Appearing as if 
roken, or cut off, at the extremity. 
tly-acuminate,—having a\broa 
extremity, as a leaf, from which a 
point arises (d0/.). 
ptly-pinnate,— the main 
axis of the e Nadas not winged, 
but bearing a number of on 
axes which are winged 
ork-la 
disorganization: shes fall i raed teat 
is due (40 
abscission (Absish’iin) ee Te 
dere, to cut off.] The ieclne 
of parts (do¢. a 
rg bape *. {L. 
n.] The intus- 
; the passa 
terial through living cells (ézo/., 
(Abstrik’shiin) #. [L. 
abstringere, to cut off.] The pro- 
cess of detaching “gre: (conidia) 
by the rounding o the tips of 
the sporophores, as in iildees (d02.), 
bterminal (Abtér'minal) a. [L. ad, 
from ; ferminus, poet Going from 
the end anes (ph 
abysmal (Abiz’mal) a. “Gk. abyssos, 
bottomless] Pee depths of the 
Manny (ab Gk. adyssos, 
ee Pert. depths of the 
ocean ; . 0 rienars 38 or material 
usually found there (bi0 
acanaceous (Akan wehtis) 
akanos, thorn. ] Bek ese 
ae _ ote (det. 
ak 
is’al) a, 
a. " 
thorns or 
acantha ha) 7. oe —_—, 
thorn. ] Pri (402.); spinou 
process 
ous © (aickntha’ shiis) a. [Gk. 
akentha, thorn.] Bearing prickles. 
ACC- 
acanthin (akin’thin) ”. [Gk. akantha, 
thorn.] A subs —— — chitin, 
strontium sulphat ing the 
skeleton of the Radiolaeians as Se 
acanthion (Akan’thién) 7. [Gk. akan- 
The most prominent 
“Gk. . ak thorn ; & 
vitae the fruit covered with spines 
or pric 
rakes. steer eea (akan’thokéf’alis, 
-séf-) a. [Gk. a 4 thorn ; keph- 
ale, head ai a hooked pro- 
boscis (z00 
d.). 
acanthocladous (akin’théklad'iis) a@ 
[Gk. a bathe, thorn ; £/ados, br ani 
Having spiny branche es. 
acanthocyst (akan’thésist) ”. [Gk 
akantha, thorn; ystis, bladder. ] 
A sac containing la lateral or reserve 
stylets in Nemerteans (zool. 
onical mass, the 
cl stylet in Nemerteans (zool.). 
can ésfe’ndt) a. 
[Gk. akantha, thorn ; pers wedge. ] 
Appi. an echinoid spine made up of 
solid we ns separated by porous 
tissue (zool. 
acanthozooid (akain’ th6z0’oid) #. 
akantha, thorn 
scolex of Cestodes as distinguished 
from the body or cystozooid (zool.). 
acapnia (Akap’ni [Gk. nos, 
without smoke.] Diminution or 
want of carbon dioxide (pfys.). 
acaulescent (Akélés’‘ént) a. [Gk. 
without ; —_ stalk.] Having a 
shorte ned s m (ot Fe 
So ase vie a we {hae 
celerare, to has ppl. craicle 
ge a Fsiies the rate 
of act ed Ays.). 
ac sig "ke tor) n. [L. accipere, 
to accept.] A body or substance 
which receives and unites with 
another substance or gas intro- 
duced Se 
accessorius (akséso’ ritis) m [L. 
cedere, to go A muscle aiding 
in the action of another ; the spinal 
—— or eleventh cranial nerve 
uvenaeny (aksés’6ri) a. [L. accedere, 
