PUP- 
— life; the stage in insect 
enon soe ps preceding the imago 
ool.). 
pupal (pial) a. [L. pupa, puppet.] 
Pert. the pupa stage (zoo/. 
(pi 
puparium a'ritim) 7. (L. pupa, 
puppet. A contetnte pupa; the 
pupal instar, exemplified in the 
blow-fly (zoo/.). 
aeeaisieal (pi’piférm) @ ([L. pufsa, 
uppe ha ec. Pupa- 
L. pupa, 
ar. 
Con- 
pupil (pi’pil) x. ere ‘ pupilla, the 
pupil of the eye.] The aperture of 
the iris capt which rays pass to 
the retina (am 
pillary (papilari, pu’pilari) a. [L. 
pupilla, pupil of the raat — 
the pupil the eye ; afp/. a mem- 
(ana 
brane 
pupiparous an pi er a. [L. pupa, 
to the pupa stage, as certain 
sitic Insects (zoo/.). 
of,—an incomplete 
strat flask - shaped cells 
tarwees the two layers of the grey 
matter of the cerebellum (anat.). 
pustule (piis’til) ils ous ustula, 
pimple.] A blister: like prominence 
(604). 
nano (piis‘tlz) 2. plu. [L. pus. 
tter.] New contractile vacuoles 
siinatatinis 0 of two ontaining 
watery fluid, each emptying by _ 
own duct, found i any Din 
putamen (piita’mén) n. [L. putamen, 
' e 
cerebrum (amaz.); the shell m 
brane of a bird’s egg (zoo/.). 
pycnidiophore otk 6) nm. [Gk. 
byknos, dense; pherein, to bear.] 
_ pildlechose nite ostnigia 
ospore (piknidiéspor) 7. [Gk. 
agrcnee dense ; sforos, seed. The 
spore Brodced BF 2 gy sve. 
um) 
pyknos, conse] A’small \dicbchaged 
organ or spermogonium containing 
266 
PYR- 
ender filaments which form 
orraiasepelen or spermatia by 
abstriction,— ge in the life- 
history of wheat rust (04). 
pycnium,— nidiu 
ppances ike m, pyeno oni 
ce 99 —varieties of acai: 
spor 
pygal (pi’gal) a. [Gk. pyge, the rump.] 
at or pert. the posterior 
Situated 
end of the back; afi. certain 
a of the chelonian carapace 
Painters (pijid’itim) #” [Gk. pyge, 
rthropods ; 
the terminal unco vered abdominal 
segment of a bee le al.). 
pygochord (pig bkOrd) 7 m. [Gk. pyge, 
rump; chorde, cord A ventral 
median r 
intestinal epithelium in 
Enteropneusta (zoo/.). 
pygostyle (pi'géstil) 7. [Gk. fyge, 
rump; s¢y/os, column.] nu 
turned compressed bone at the end 
of th ebral colu of Birds, 
form y fusion of the four or 
indmost vertebrae (zoo/.) 
peri (pilésit) 7. 
way ; kytos, hollow.] A pore 
by lo: 
Pert. or in the region 
of the pylorus; aff/. artery, scan ae 
glands, orifice, valve, vein (a7at.). 
pylorus ‘(p i1d’rit a [Gk. ilores. 
vitekeeee f orifice o 
the stomach, Poa or 8 with 
the duodenum (a7az.). 
(pir'dmid) ~ [L. pyramis, 
a pyramid.] A conical seactare, 
protuberance, eminence ; 
a —— marge of ‘echihoids 
of eh tem- 
ae one venibale (an 
pyramidal ( iram’‘id al) a. tL. foros 
apyramid.] Conical; likea pyramid ; 
& 
lo S, processes, muscle rene 
pyrene (pirén, pirén’) #. [Gk. pyren, 
