PTE- 



264 



parietal, frontal, and great wing of 



sphenoid (anat.). 

 pterocarpous (ter'okar'pus, pter-) a. 



[Gk. pteron, wing ; karpos, fruit.] 



With winged fruit (bot.}. 

 pteroid (ter'oid, pter-) a. [Gk. pteris, 



fern ; eidos, resemblance.] Like a 



fern (bot.}. 

 pteropaedes (teYope'dez, pt6r-) n. plu. 



[Gk. pteron, wing ; pats, child.] 



Birds able to fly when newly 



hatched (sool.). 

 pteropegum (teYope'gum, pter-) n. 



[Gk. pteron, wing ; pegos, firm.] 



An insect's wing socket (zool.). 

 pteropodium (teYopo'dium, pt6r-) n. 



[Gk. pteron, wing ; pous, foot.] A 



winged foot, as of certain bats (zool.). 

 pterospermous (ter'osper'mus, pter-) 



a. [Gk. pteron, wing ; sperma, 



seed.] With winged seeds (bot.}. 

 pterostigma (ter'ostig'ma, ptSr-) n. 



[Gk. pteron, wing ; stigma, mark.] 



An opaque cell on certain insect 



wings (zool.). 



pterotheca (teYothe'ka, pt6r-) n. [Gk. 

 pteron, wing ; theke, a case.] The 



wing-case of pupae (zool.). 

 pterotic (tfirot'ik, pter-) n. \Gk.pteron, 



wing ; ous, ear.] A cranial bone 



overlying the horizontal semicircular 



canal of the ear (zool.). 

 pterygial (terij'ial, pt6r-) a. [Gk. 

 pteryx, wing.] Pert, a wing or fin ; 

 appl. a bone supporting a fin-ray 

 (zool.}. 

 pterygiophore (tSrij'ipfor, ptSr-) n. 



gik. pteryx, wing ; pherein, to bear.] 

 ne of a row of cartilaginous rays 

 forming the skeleton of median 

 fins (zool.}. 



pterygium (terlj'ium, pt6r-) n. [Gk. 

 pteryx, wing.] A prothoracic pro- 

 cess of weevils ; a vertebrate limb 

 (zool}. 



pterygobranchiate (teVigdbrang'kiat, 

 pter-) a. [Gk. pteryx, wing ; 

 brangchia, gills.] Having spread- 

 ing or feathery gills, as certain 

 Crustaceans (zool.). 



pterygoda (teYfgp'da, ptfir-) n. plu. 

 [Gk. pteryx, wing ; eidos, resem- 

 blance.] The tegulae of an Insect 

 (zool}. 



pterygoid (tgr'igoid, ptSr-) n. [Gk. 

 pteryx, wing ; eidos, form.] A 

 cranial bone (zool.) ; a. wing-like ; 



appl. the wing-like processes of the 

 sphenoid, also canal, fissure, fossa, 

 plexus, muscles (anat.). 



pterygomandibular (ter'igomandib'- 

 ular, pter-) a. [Gk. pteryx, wing ; 

 L. mandibulum, jaw.] Pert, ptery- 

 goid and mandible ; appl. a 

 tendinous band of the buccopharyn- 

 geal muscle (anat.). 



pterygomaxillary (ter'igomaksirari, 

 pter-) a. [Gk. pteryx, wing ; L. 

 maxilla, jaw.] Appl. a fissure 

 formed by divergence of the maxilla 

 from the pterygoid process of the 

 sphenoid (anat.). 



pterygopalatal, pterygopalatine. 



pterygopalatine (ter'igb'pal'atin, pter-) 

 a. [Gk. pteryx, wing ; L. palatus, 

 palate.] Pert, the region of ptery- 

 goid and palatal cranial bones ; 

 appl. canal, fossa, groove (anat.). 



pterygoquadrate (ter'igokwod'rat, 

 ptgr-) a. [Gk. pteryx, wing ; L. 

 quadratus, squared.] Appl. a carti- 

 lage constituting the dorsal half of 

 the mandibular arch of certain 

 Fishes (zool.). 



pterygospinous (tSr'igospl'nus, pter-) 

 a. [Gk. pteryx, wing ; L. spina, 

 spine.] Appl. a ligament stretching 

 from lateral pterygoid plate to 

 spinous process of sphenoid (anat.). 



Pterylae (ter'ile, pter-) n. plu. [Gk. 

 pteron, feather ; yle, a wood.] The 

 feather tracts of a bird's body, or 

 the areas on which feathers spring, 

 as distinguished from the un- 

 feathered areas or apteria (zool.). 



pterylosis (terilo'sis, ptgr-) n. [Gk. 

 pteron, feather ; yle, a wood.] Ar- 

 rangement of pterylae and apteria 

 in Birds (zool.). 



ptilinum (tili'num,.ptil-). [Gk.ptilon, 

 feather.] A head- vesicle or bladder- 

 like expansion of the head of a 

 fly emerging from the pupa, useful 

 for rupturing the hard covering, 

 introverted when the insect is 

 mature ; found in about one-half of 

 the Diptera (zool.). 



ptyalin (tl'alin, ptl-) n. [Gk. ptyalon, 

 saliva.] A digestive ferment of 

 saliva (phys.). 



ptyxis (tik'sis, ptik-) n. [Gk. ptyxis, 

 a folding.] The form in which 

 young leaves are folded or rolled 

 on themselves in the bud (bot.). 



