PER- 
Dividing a valve longitudinally 
(b0t.). 
— ane’ — ats per, through ; 
y.] Perforated ; permeable 
(bial. 5 apes é iaaie with no septum 
between the nasal me vities (zool.). 
ot.] A foot or 
ae structure ; ae certain parts 
of the sr branches of the facial 
(an 
pessulus ew tis) m [L. pessulus, a 
2 td =o} ternal ee element 
sonak (oeEal) n. ”TGK. petal, a _ | 
One of ve separate parts 
eal (do8. 
taliform L eeaPutteca) a. [Gk. 
petalon, petal; L. forma, shape.] 
Petal- — petal: shone eadeia. : 
petalin 
petalled (pev’ald) 2 [Gk. petalon, a 
petal.] With petals ; petaliferous ; 
opp. apetalous (do7. 
6 oe etalon, 
tal: ezdos, resemblance.| Con 
er parts of a dower: 
d) . [Gk. pezalon, 
tal; ezdos, resemblance.] Like a 
inner side the peduncle with 
interlocking coupling hooks, an 
rhe of certain Crustacea 
Ze 
, (pét'iolir) a. 
petiolar L. petiolus. 
a little foot] Pe orbs ie ‘ 
ing orax an abdomen in Insects 
(zool. on 
t'10lal 
. oe sok 3 ot n. Ree na gee ge 
leaflet st a dee leaf act). 
236 
Phaeochrome (féékrém) #. 
petrohyoid (pét’rdhi’oid) [Gk. 
_ stone ; hyoetdes, Y- “shaped 
t, hyoid petrous part of 
lees 
gore (pat! rémas’toid) a. [Gk. 
pe stone ; mastos, breast.] Pert. 
ort 
petrooccipital 
k. Petros, stone ; L. occ 
of the head.] Pert al an < 
petrous Part of temporal ; api. 
est 
tros, ston uaa, 
scale. ] Pert squamoral andj petrous 
pa 1; appl. sinus and 
ympanic (pét’ iro sesgpr 
[Gk. fetros, stone ; tympanon, drum m.] 
Pert. tympanum and petrous = 
tion of temporal; aff. a fiss 
(anat.), 
petrous so riis) a. [Gk. fetros, 
stone.] Very hard or stony ; ; appl. 
ganglion on its lower banat 
mat.). 
Peyer's pate oval patches 
aggregat ae iymph follicles on the 
intestine _— (zool.). 
phacella Ya) 2. = —— 
a Goalie of faggots.] A delic 
filament with mesogloea core, 4 
supplied with stinging capsules, 
rows in the stomach 
of certain ee ee get's me 
phacoid (fak’oid) a hako, a 
lentil ; e¢dos, eee ES Lentil- 
shape ed. 
Gk. i 
appl. 
Phaeism (f€izm) #  [ 
dusky. Duskiness ; 
colouring of butterflies. 
[Gk. 
