PER- 
through ; anus, year.] — 
h the year or for a num 
of years (40. 
pere mnibranchiate ee ear’ 
a. [Le per, 
Gk. Leider 
gills persisting oe life, as 
certain Amphibians (zoo/.). 
perfoliate (pérfa' fat) a. ‘ 
through ; folium, leaf.] Appl. a 
leaf with basal lobes so united as 
to 7d ed as if the stem ran through 
it 
nacht (pér’ a a. 
[L. perforare, 
to bore through.] Having holes 
F pores, as _— S, ae 
(eee!) ; appl, certain areas 
brain perforated — small boo. 
vesse ioe (ana 
r (pé fora) mo {Lig 
fo rane, “gh bore through.] A med 
spear-like head and Lggems of some 
a oa, as Salamander 
Phere 
omtyarc earl othe 
seer “through Gk. coh water. 
An enzyme whi tid h 
rpc st of sekiviiiee tyleneen 
(phys. 
perianth (pér'ianth) #  [Gk. peri, 
round ; antho a flow er A floral 
envelope ; the 1 floral whorls, 
including ales pay corolla “agro 
periblast gohan m. [Gk. 
round ; d/as/os,a bud.] The outside 
layer, epiblast, or a of a 
oe asia ryo 
tc (periblas'tik) a. [Gk. peri, 
ce blastos, a bud.] Pert. the 
periblast ; superficial, as appl. 
segmentation (em2é.). 
blastula (périblas’tila) #. [Gk. 
ri, round; d/astos, bud.] A blastula 
ego. from periblastic segmenta- 
periblem (pér'iblém) n 
ermatoge n and plerome 
of growing points (404). 
Peribranchial ( ee [Gk. 
é. round ; angcht gills.] 
Around the gies. Z. i type of 
gemmation and atrial cavity in 
Ascidians ; s 
ppl. circu spa 
surrounding basal parts of papulae 
of Asteroids (zool. oe See 
232 
PER- 
orem (pé rikar'diak), _ peri- 
[Gk. peri, 
h 
pericardi périkar'ditim) ”. [Gk. 
peri, round; ka eart.] The 
cavity containing the heart; the 
nat.). 
pericarp (pér'ikarp) #. [Gk. per, 
ro arpos, fruit.] The ovary 
walls of fruits (02. 
pericentral {obriate — a. [Gk. 
peri, round m, centre.] 
Round or near ‘the ae 3 app 
ba cells (40 
perich: azn (partka's hitim) #. [Gk. 
peri, gerne ; — loose hair.] 
One of th 
the tony a of Mosses (d0¢.). 
ériké artim) 1. 
perichondri 
[Gk. pert, round ; chondros, carti- 
lage. rous membra 
covers cartilages (amat.) 
pe ( ér'dal) a. [Gk. 
peri, und; chorde, cord. ] 
a or near the notches 
zool. 
perichylous (pér‘iki'liis) a. Sage peri, 
seuihts Y chplos, juice.| With water- 
storage cells outside the chlor- 
enchyma (40+). 
gor apes (peri ikla’diiim) #2. [Gk 
rt klados, a branch. ] 
he iowereioet clasping portion of 
sheathing petiole : 
perielinal (pér'ikli’nal) ” 
ot). 
son gge so mcabgreyy m. [Gk. 
pong: vous nd; line, a e€ 
involucre of a combate. flower 
_ 
um (périkra’nitim) #. [Gk. 
er8, rou mand 3 kranion, skull.] The 
fibrous membrane investing the 
skull (ana 
pericycle (peristi) nm.  [Gk. a 
roun ey circle. 
etherial ayer of the stele ye). 
Gk. p. 
peridental (péridén’ta 
round ; L. dens, to 
tooth ; appi. 
periosteum of a root (anat.). 
