PLE- 



PNE- 



pleuropedal (ploo/oped'al) a. [Gk. 

 pleura, a side ; L. pes, foot.] Pert. 

 pleural and pedal ganglia of 

 Molluscs (zoo/.), 



pleuroperltoneum (ploor'opeV- 

 itone'um) n. [Gk. pleura, side ; 

 peri, round ; teinein, to stretch.] 

 Pleura and peritoneum combined, 

 the body-lining membrane of 

 animals without diaphragm (zoo/.). 

 pleuropodiuxn (ploor'opo'dmm) n. 

 [Gk. pleura, a side ; pous, foot.] 

 A lateral glandular process of the 

 abdomen of some Insects (zoo/.). 

 pleurosteon (plooros'teon) n. [Gk. 

 pleura, side ; osteon, bone.] The 

 lateral process of the sternum in 

 young Birds, afterwards the costal 

 process (zoo/.). 



pleurotribe (ploor'otrib) a. [Gk. 

 pleura, side ; tribein, to rub.] Appl. 

 flowers whose anthers and stigma 

 are so placed as to rub the sides of 

 insects entering them, a device 

 for securing cross-pollination (to/.). 

 pleurovisceral (ploor'ovis'e'ral) a. 

 [Gk. pleura, side ; L. viscera, in- 

 testines.] Pert, pleural and visceral 

 ganglia of Molluscs (zoo/.). 

 plexlform (pleVstform) a. [L. plexus, 

 interwoven ; forma, shape.] En- 

 tangled or complicated ; like a 

 network ; appl. layers of the retina 

 (ana/.). 

 plexifonn gland, the axial organ of 



Echinoderms (zoo/.). 

 plexus (pleVsus) n. [L. plexus, inter- 

 woven.] A network of interlacing 

 blood-vessels or nerves (ana/.). 

 plica (plfka) n. [L. plicare, to fold.] 

 A fold of skin or membrane (ana/.). 

 plicate (plik'at) a. [L. plicare, to 

 fold.] Folded like a fan, as a leaf 

 (to/.) ; folded or ridged (zoo/.). 

 pliciform (plis'iform) a. [L. plicare, 

 to fold ; forma, shape.] Resembling 

 a fold ; disposed in folds, 

 pluma (ploom'a) n. [L. pluma, a 

 feather.] A contour feather of birds. 

 plumage (ploom'aj) n. [L. pluma, 

 feather.] The entire covering of 

 feathers of a bird. 



plumate (ploom'at) a. [L. pluma, 

 feather.] Plume-like in arrange- 

 ment. 



plume (ploom) n. [L. pluma, feather.] 

 A feather, or feather-like structure. 



plumicome (ploomlkom) n. [L. 

 pluma, feather ; coma, hair.] A 

 spicule with plume-like tufts (zoo/.). 

 plumicorn (ploom'IkSrn) n. [L. 

 pluma, feather ; cornu, horn.] A 

 horn-like tuft of feathers on a bird's 

 head. 



plumigerous (ploomij'e'rus) a. [L. 

 pluma, feather ; gerere, to carry.] 

 Feathered. 



plumiped (ploom'Tpe'd) n. [L. pluma, 

 feather ; pes, foot.] A bird with 

 feathered feet. 



plumose (ploom'os) a. [L. pluma, 

 feather.] Feathery; having feathers; 

 feather-like ; appl. a type arrange- 

 ment of skeletal fibre in Sponges, 

 plumula, a plumule, 

 plumulaceous, plumulate. 

 plumulate (ploom'ulat) a. [L. plum- 

 ula, a small feather.] Downy ; with 

 a downy covering. 



plumule (ploom'ul) n. [L. plumula, 

 a small feather.] A primary bud 

 which develops the primary axis of 

 a stem (to/.) ; the androconia of 

 numerous butterflies ; a down- 

 feather (zoo/.). 



pluriaxial (ploor'iak'slal) a. [L. plus, 

 more ; axis, axle.] Having flowers 

 developed on secondary shoots 

 (to/.). 



plurilocular (ploor'Ilfik'ular) a. [L. 

 plus, more ; loculus, a little place.] 

 Having two or more loculi. 

 pluripartite (ploor'ipar'tit) a. [L. 

 plus, more ; ftartitus, divided.] 

 With many divisions, lobes, or 

 partitions. 



pluriserial (ploor'fse'rTal) a. [L. plus, 

 more ; series, a row.] Arranged in 

 two or more rows. 



plurivalent (plooriv'alfint, ploor'Iva'- 



iSnt) a. [L. plus, more ; valere, to be 



worth.] Appl. a chromatin-rod with 



more than one chromosome (cyt.). 



pluteal (ploot'eal) a. [L. pluteus, a 



shed.] Pert, a pluteus. 

 pluteus (ploot'eus) n. [L. jtluteus, a 

 shed.] The free-swimming larva 

 of Echinoids and Ophiuroids (zool.). 

 pneumatic (numat'lk) a. [Gk.pneuma, 

 air.] Appl. bones of birds pene- 

 trated by canals connected with 

 the respiratory system (zoo/.). 

 pneumaticity (numatlsTtf) n. [Gk. 

 pneuma, air.] State of having air 



