PIS- 242 PLA- 
piscicolous (pisik’éliis) a [L. pz ‘sis, physie « of the hypothalamus of the 
fish; colere, to inhabit.] Living brain 
within fis es, as certain parasites pivot pe —a trochoid joint, or one 
poser ool.). in which the pes is limited 
orm (pis'iférm) @. [L. péscis. to rotation (phy 
ash forma, s banat, Shaped like place ne (plasén a) ve [L. placenta, 
a flat e. ovule-bearing 
cca (pisiv’értis) a. [L. en part * the carpel (bot) ; in eutherian 
fish; vorare, to devour.] Fish- Mammals, a double vascular spongy 
eatin aerectate ord ed by interlocking of 
pisiform (p' coher a. [L. pisum, a foetal and maternal tissue in the 
pea ; forma, shape.] Pea- shaped ; erus, and in which maternal and 
appl. a carpal iene (zool.). foetal blood are in close proximity, 
Pp te eo clio cee allowing nutritive and respiratory 
pisum, pea 
a ligament connecting pisiform and 
hamate bones (ava 
(pr sent ‘akar'pal) a. 
e fifth eee (anat. 
pletil (pis’til) 7, ay pistillum, a 
pestle.] The d-bearing organ 
of a flower, an ae of ovary and 
ne 
te (pis tlat) a. [L. pistillum, 
apestle.] Bearing Won or female 
So — 
pis erna'iim}. n. 
le. 
Pteridophytes, and Gymnosperms 
ot. ). 
pistillody (pis’ ager a: [Le act ies, 
a pestle ; Gk. ezdos, r sng age 
The conversion of rae ieg rgan a 
= som into carpels (do¢. 
stilt on it ag 7 i 
a pestle. _— f musc 
chitinous t 
ie Rascarwiiny of 
ol. 
cell-wall thickening in plant tissue 
embryonic olfactory 
picarium 
i ie ofa leaf 
for insect-catching purposes, as the 
Sa shaped leaf of Nepenthes 
~_ pith n. [A.S. pitha, pith,] The 
edulla or centra ie on of a 
dicotyledonous stem Aga 
pitiitari iL. pituita, 
phlegm.] PADS. a ‘Sas or hypo- 
elements to pass from the former to 
the latter by osmosi 
placental (plasén tl) a. [L. placenta, 
a fl a placenta or 
similar arate ; ‘appl. Mammals 
which a placenta. 
—— (pls tat) a. [L. Siccea 
a flat 
ke.] Having a place 
a nego ed-tiee 
pier pea (plas - ‘shiin) # [L. 
placenta, a flat c é manner 
in hick seeds are sore Oe to the 
pericar wh axile, central, 
marginal, or parietal (4o¢.). 
1 acentigerous, —pla- 
entate. 
placochromatic (plak’okrémat’ ik) a4. 
[Gk. Alax, a plate Sasha: poe 
With plate-arra ngemen of chro 
lnsotianthe Ge (soo. 
mer se mame age n. [Gk plax, plate | 
A ned blast with sm 
anes — daa ore 
eee of Urochords (emé 
Gk. 
oblique ; ¢vope, a boone} 
Wage a 
Obliquely inclined ; aff/. roots an 
branches (404). 
plagiotropism (pla’jist'répizm) #. 
[Gk. Alagios, oblique; ¢tope, a 
turning. Tendency to incline 
g.] 
oe om =~ ieee ul line | (Got. 
planiform (pla’niférm) a. [L. planus, 
