PRO- 
oe cranial bone of Teleosts 
cation (prosifén) # (Gk. pro 
for; siphon, tube.] A spout-like 
prolongation of the edg the 
-flaps of certain Molluscs 
(oo0L). 
prosocoel (prés‘ésél) 7 [Gk. Jros, 
near; £ozlos, hollow narrow 
cavity in the epistome of Mollus- 
coidea, the ne main part of the 
coelom (zoo. 
prosodetic mee 6dét'ik) - [Gk 
prosodos, advance.] Anterior to 
; certain  Biaite 
lus a ods) n. [Gk. prosodos, 
delicate canalicule 
he anterior 
before ; soma, body.] T 
of the body ; a cephalothorax 
ae 
SO, 
erture 
pong es (s00 
Sasetalla (prostai) n, plit. te pro, 
orth ; séare, Projecting 
cules o of Hexactinellids (zool.). 
[L. pro, before ; 
Appl. a gland 
aced a Soend the Panieicennelit 
e male urethra in the pelvic 
cavity (an 
rostatic rorneite ie): a. - LL gre, 
before ; stare, to omg a the 
prostate gland ; Le sg t, nerve, 
sinus, utricle (avaz.). 
emmate eee &. Liak 
before;  stemma, 
i 
re: 
doubtful function (zoo. _ 
prostemmatic,—prostemmate. 
um (prostér’niim) es ase 
pro, ian a breast-bone. ] 
The ventr; of the prothorax 
of Insects gan Ny, 
cat {pre thin) n. (Gk. pros 
foremost.} The alveolar 
point; the middle po of the 
upper raider he (ana 
to’miat). a. [Gk. 
pro, rere sel “iuath.) Having 
258 
PRO- 
ee " the head in front of the 
mouth 
peouiccisie _(prost cy) forges m. (Gk. 
pro, before; stoma, mouth.] In 
Bl ad Mollu uscs, the Leh of the 
terior to the m (zool.). 
prostrate bie trat) a. ae poh stratus, 
hro 
ro wn.] Procumbent ; trail- 
1 aig rae ground (d02.). 
protandrism (prétan’drizm) #. [Gk 
protos, first; andros, male.] Pro- 
tan sometimes exclusively in 
zoological application (dzo/.). 
protandrous (prétan’driis) a [Gk. 
Protos, first ; 
ota dri) 7. nN Ok. protos, 
Con dition of 
a 
t ements 
an re before the fem ate 
elements rane biol.). 
prote 
semicircular or semiell 
bryonic shell of Brachiopods (zoo/.) 
proteid (prd’téid) [G ‘otos, 
first; eidos, resemblance.] he 
nitrogenous ica of | eee cells ; 
albuminous' substance ; term 
subject to epee restrictions in 
different authors (pfys.). 
ep pid n. NA protos, first.] 
Alb s substance; a _nitro- 
cs peotitnr of cell proto- 
plasm ; the sum-total of nitrogen 
present in proto pla sm; a ‘3 of 
variable application (phy. 
proteolytic (prod teonvik) a. [Gk. 
protos, first; lysis, a loosing.] 
Appi. ferments which change pro- 
teins into proteoses ve) Beach. 
es ag (phy 
rea dk) a. ; 
andros, male.] 
7. herm cnanitirod tai in which 
ovaries and testes are functional 
at different times (é7o/.). 
terandrous,—protandrous. 
proteranthous pro ro'téran’thiis) a. 
[Gk. pr vat ae anthos, flower.] 
Flowering before foliage leaves 
ances (G04.). 
