OXY- 



222 



PAL- 



increase the oxygen content of the 

 blood (phys.). A 



oxygnathous (ok'signath'us) a. [Gk. 

 oxys, sharp ; gnathos, jaw.] Having 

 more or less sharp jaws (zool.}. 



oxyhaemoglobin (ok'sihe'moglo'bin) 

 n. [Gk. oxys, acid ; haima, blood ; 

 L. globus, a globe.] Haemoglobin 

 combined with oxygen, as found in 

 arterial blood (phys.}. 



oxyhexactine (ok'sihSksak'tin) n. 

 [Gk. oxys, sharp ; hex, six ; aktis, 

 ray.] A hexactine with rays ending 

 in sharp points (zool.). 



oxyhexaster (ok'siheksas'ter) n. [Gk. 

 oxys, sharp ; hex, six ; aster, star.] 

 A hexaster with rays ending in 

 sharp points (zool.}. 



oxyntic (oksm'tik) a. [Gk. oxyein, 

 to make acid.] Secreting acid ; 

 appl. cells, glands (phys.~). 



oxytropism (oksit'roplzm) n. [Gk. 

 oxys, acid ; trope, a turning.] The 

 tendency of numerous organisms 

 to be attracted by oxygen (phys.}. 



oxytylote (ok'sitl'lot) n. [Gk. oxys, 

 sharp ; tylos, a knob.] A slender, 

 straight sponge spicule, sharp at 

 one end, knobbed at the other 

 (zool.}. 



P,, denoting the first parental 

 generation, P 2 the grandparents, 

 etc., in the law of Mendel. See Fj. 



Pacinian bodies or corpuscles, 

 distal nerve-endings, consisting of 

 lamellated connective-tissue capsule 

 with a core of nucleated proto- 

 plasmic cells containing the ramifi- 

 cations of a single medullated 

 nerve-fibre (anaf.). 



paedogenesis (pe'dojSn'esis) n. [Gk. 

 pais, child ; genesis, descent.] 

 Breeding while still in the young 

 or larval state, as Axolotl, certain 

 Diptera (zool.}. 



paired flns, the pectoral and pelvic 

 fins of fishes ; dorsal, anal, and 

 caudal fins are unpaired. 



Palaeobotany (pal'eobot'anl) n. [Gk. 

 palaios, ancient ; botane, a plant.] 

 The botany of fossil plants or plant 

 impressions. 



palaeogenetic (pal'eojenet'Ik) a. [Gk. 

 palaios, ancient ; genesis, descent.] 

 Appl. atavistic features fully de- 

 veloped, which are usually char- 

 acteristically embryonic (biol.). 



Palaeontology (pal'eontol'oji) n. [Gk. 

 palaios, ancient ; ons, being ; logos, 

 discourse.] The science of past 

 organic life based on fossils and 

 fossil impressions. 



Palaeozoic (pal'edzo'ik) a. [Gk.palaios, 

 ancient ; zoon, animal.] Appl. the 

 Primary or earliest of the three 

 groups of rock-systems (pal.}. 



Palaeozoology (pal'eozSol'bji) n. [Gk. 

 palaios, ancient ; zoon, animal ; 

 logos, discourse.] The zoology of 

 fossil animals and animal im- 

 pressions. 



palama (pal'ama) n. [Gk. palame, 

 th,e palm.] Foot-webbing of aquatic 

 birds. 



palamate, palmate. 



palatal (pal'atal) a. [L. palatum, 

 palate.] Pert, the palate ; palatine ; 

 appl. bone, sinus, etc. (anaf.). 



palate (pal'at) n. [L. palatum, 

 palate.] The roof of the mouth 

 (anaf.) ; an insect epipharynx 

 (zool.} ; a projection of the lower 

 lip of a personate corolla (&?/.). 



palatine (pal'atin) a. [L. palatum, 

 palate.] Pert, or in the region of 

 the palate ; appl. artery, bone, 

 foramen, etc. (anaf.). 



palatoglossal (pal'atoglos'al) a. [L. 

 palatum, palate ; Gk. glossa, tongue.] 

 Pert, palate and tongue ; appl. a 

 muscle (anaf.). 



palatonasal (pal'atona'zal) a. [L. 

 palatum, palate ; nasus, nose.] 

 Pert, palate and nose (anaf.). 



palatopharyngeal (pal'atofarin'jeal) a. 

 [L. palatum, palate ; Gk. pharyngx, 

 pharynx.] In the region of palate 

 and pharynx ; appl. a muscle 

 (anaf.). 



palatopterygoid (pal'atopter'igoid) a. 

 [L. palatum, palate ; Gk. pterygion, 

 little wing ; eidos, resemblance.] 

 In the region of or pert, palate and 

 pterygoid (anaf.). 



palatoquadrate (pal'at6'kw6d'ra.t) a. 

 [L. palatum, palate ; quadrat us, 

 squared.] Connecting palatine and 

 quadrate ; appl. the dorsal cartilage 

 of the mandibular arch (anaf.). 



