PIG- 
[L. pia mater, kind mother.] A 
delicate highly vascular membrane 
oe brain and _ spinal ne 
nat.) 
pigment (pig’mént) ~. [L. pingere, 
int.] Colouring matter in 
plants or animals. 
mt cell,—a a chromatophore or 
cell coniatand colouring matter 
(di0/.). 
pigmentatio n (pig’ ménta’shiin) 7. i 
pingere, to paint ip es of 
co ouring matter in an organ or 
organism (é/o/.). 
errs (pite std a fl ora 
cap. 3 appl. B 
pileolated enreold parnsitee [L. prota is 
rnished with a 
small cap or cap 
pileolus (plle’aliis) 7 nm. [L. Sates 
mall 
k. rhi: 
covering ; a root-cap (40 
pileum (pil’éiim) 7. [L. gente Mm, a 
ih The e top of the head region 
a 
cies (pil’éiis nm. ([L. pileus, a = 
The ae shaped stru 
e of a mushroom (4o4.), or of : a 
jelly- -fish (zool.). 
pilidium (pilta’tam) n. (Gk. pilidion, 
a small cap.] The characteristic 
helmet-shaped larva of Nemertines 
(2001 
pilifer (pilifér) m. [L. pélus, hair ; 
ferre. rry.] Part of the labrum 
of Lepuionescs 200, 
iliferous fériis) a. [L. ptlus, 
hair ; ferre, carry.] Bearing or 
Hai 
—_ ( ris) m. Ul pilus, hair.] One 
- like structures 
pina tablet 
The pee plate-like cells of the 
dermal epithelium of Sponges 
pince ~~ Laceagey claws, 
lobster ; chelae of Insects ; ‘cheli- 
cerae of Arachnids (zoo/.). 
241 
PIN- 
pinealis (piné‘dlis) 7. 
ine-c 
Li 
et of a pinnate lea 
the pid ear; a bird’s feather or 
wing ; a fish-fin (zoo/.) 
pinnate (pin’at) [L. pinna, a 
feather.| Divided in a feathe 
a compound leaf, having leaflets 
on each side of an axis or midrib 
bo 
innatifid (pinat'ifid) a. [L. pinna, 
feather ; jindere — Save -] 
leaves lobed nhs t half-way to the 
midrib 
pinnatilo coat (pina 10’ oe rae be 
pinna, fea Gk. a lobe.] 
With le 
sae “pinnate Tabed pikes 
pinnation (pina’shiin) 
feathe 
Pinnat ate connitean (or) 1% 
e way to the midri 
Pod Dy ge a, (L . pin 
eather ; es, fo ot] coed. lobed 
feet, as certain Bird 
acest ioat (pinat seit) a. [L. pinna 
ena sectus, With leaves 
vo Pa to the base or 
ae rine 
innatodentate cee _ brs, a. a 
ather ; dens, ae 
eae pinna, fea ers crab a com 
Pinnate, ie pectinate lobes (Got) 
D n‘if6rm L. pinna, 
feather ; a gai shape.] Feather- 
shaped or fin-shaped (470. 
pinninervate (pinin'vat)” a ie 
pinna, fea ther ; w.] 
a. ite Tones like rs oe a 
ial ray (200. 
Q 
[L. pinea, a 
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