OXY- 
increase the oxygen content of the 
blood (pAys.). 
oxygnathous (8k’signath’iis) a. [Gk 
oxys, sharp ; gvathos, jaw. | Having 
jaws (zoo0/.). 
(6k’sihé’mégld’bin) 
n, k. oxys, acid ; haima, blood ; 
bus, a globe.] 
with oxygen, as found i 
a or blood (phys.). 
(ke sihéksik tin) Nt. 
[Gk os, sharp ; hex, six; aktis, 
ray.]| A hexactine with rays ending 
in sharp points (zoo/.). 
oxyhexaster (k's — tér) z. [Gk. 
oxys, sharp ; six ; aster, star.] 
A hexaster with ay ending in 
sharp points (20 
oxyntic (ksin’tik) a. 
[Gk. oxyein, 
to make acid. 
Secreting acid ; 
LYS.) 
répizm) 2. [Gk. 
sharp ; ¢y/os. 
straight. peer spice, sharp at 
ne end, knobbed at the other 
2.). 
P 
P,,— denoting the first parental 
generation, e grandparents, 
P, th 
etc., in the ow of Mendel. See F,. 
Pacinian bodies 
or corpuscl 
distal nerve-endings, consisting of 
lamellated connective-tissue capsule 
with a core of nucleated a 
esi cells containing the ramifi- 
cations 0 as sipdultaked 
nerve- fibre (ana 
ere 2 (pe in sis) m.  [Gk. 
pais, esis, descent.]} 
Breeding ‘hie till in the young 
r larval — as Axolotl, certain 
Divcera (x (zool.). 
paired fins,— the pectoral and pelvic 
fins of fishes; dorsal, anal, and 
caudal fins are unpaired. 
Palaeobotany (paléébét'ani) 7. 
[Gk. 
a ancient ; dofane, a plant.] 
pasar is of fossil plants or plant 
impressi 
222 
PAL- 
palaeogenetic (pal'edj énét'ik) a. 
palaios, ancient ; genesis, descent.] 
Appl. a stavistic ‘features fully de- 
are usually free 
acteristically embryonic (6z0/.). 
Palaeontology oe nm. [Gk. 
— ‘ i 
nce of pas 
organic ona based ‘a fossils and 
fossil im 
Palaeozoic (pa E60) a. [Gk pe git 
ancient ; zoom, animal.] 
is y or earliest of ine i 
groups = rock-systems (pa/. 
Palaeozoo ay (pale6z0010}!) sn [Gk. 
pa Sang an pede Be goon, animal ; 
logos, Sur The zoology, sie 
fossil animals and animal 
pressions 
palama (pal’ama) n. [Gk. palame, 
the palm.] Foot-webbing of aquatic 
varie 
—palmate. 
palatal “CoaPatal) a [L. seca 
late.] Pert. the palate ; salarine 
7. bone, sinus, etc. (anat. 
appl. . 
palate (palat) # ([L. pala ala tum, 
oof of the mouth 
palatine (pal'atin) a. [L. palatum, 
late.] Pert. or in the region of 
the palate ; sae artery, bone, 
foramen, etc. (avaz.). 
palatoglossal (pal'atéglds ‘aha. [Ee 
palatum, palate ; Gk. —_ tongue 
Pert. palate | and ton gue; appl. 
muscle (ava 
tonasal (patna _ 6 [in 
us, nose.| 
palatopharyngeal (pal’4 véfrin Heal) a. 
[L. palatum, palate ; Gk. pharyng, 
pharynx.] In the ee of — 
and pharynx; appl. a uscle 
a — 
oid aig ie ps: a. 
rygion, 
resem se cis 
the region of or fers. palate and 
pterygoid (anaz. 
atoquadrate Cerne ernst 
{L. palatum, 
ce fiend a en - 
appl. the dorsal cartilage 
af oi grate ant meh (anat.). 
