OZM 



299 



PAL 



vei-m-ik'-ul'dr'-is (Gr. oxus, sharp, 

 rapid ; oura, a tail : vermiculdris, 

 pert, to a worm from vermis, a 

 worm), a minute, white, thread- 

 like parasitic worm, of separate 

 sexes, the male about one- 

 and - half - line in length, the 

 female five or six : oxyurides, n. 

 plu., dks'-i-ur'-id-ez, the thread- 

 worms. 



ozsena, n., tiz-en'd (L. ozcena, Gr. 

 ozaina, an offensive ulcer in the 

 nose from Gr. dze, a stench), an 

 offensive discharge from the nose, 

 arising from various causes. 



ozone, n., oz'on (Gr. tizo, I emit 

 an odour), a supposed modification 

 of oxygen, existing both in air 

 and water, developed by electrical 

 action in thunderstorms, etc. , and 

 which emits a peculiar odour: 

 ozonised, a., oz'-dU'lzd, charged 

 with or containing ozone. 



Pacchioni glandulse, pdlc'-M-on'-i 

 gldnof-ul-e (mod. L. Pacchioni, of 

 Pacddonus, an Italian ; glandulce, 

 glandules), the bodies or glands 

 of Pacchionus, their first describer ; 

 numerous small pulpy - looking 

 elevations, generally in clusters, 

 upon the external surface of the 

 dura - mater, coinciding with 

 corresponding depressions on the 

 inner surface of the skull. 



Pachydermata, n. plu., patf-i- 

 dermf-dt'd (Gr. pachus, thick ; 

 derma, skin, dermatos, of skin), 

 the thick-skinned animals, an 

 old Mammalian Order, to include 

 such animals as the rhinoceros, 

 the hippopotamus, and elephant : 

 pachydermatous, a. , paWi-derm'' 

 dt-us, thick - skinned : pachy- 

 dermia, n., pdJcf-i-derm'-t'd, a 

 thickened state of the skin : 

 pachymeningitis, n., pok'-i-men 

 mg-jit'is (Gr. meningx, a mem 

 brane, meninggos, of a membrane), 

 inflammation of the dura-mater. 



Pacinian bodies, pd-sin'-i-dn 

 (after Pacini of Pisa), certain 

 small oval bodies, like little seeds, 



found, in dissecting the nerves 

 of the hand or foot, attached to 

 their branches as they pass 

 through the sub-cutaneous fat 

 on their way to the skin. 

 Paeonia, n., pe-on'-i'd (after the 

 physician Pceon), a fine genus 

 of plants, Order Ranunculacere, 

 much valued for their large, varied, 

 and richly-coloured flowers, some 

 varieties having double blossoms 

 resembling large double roses : 

 Pseonia albiflora, dlb'-i-flor'-d (L. 

 albus, white ; flos, a flower, 

 floris, of a flower), a species 

 whose fleshy roots, cooked, are 

 sometimes eaten by natives of N. 

 Asia. 



pagina, n., pddf-in-d (L. pagma, 

 a page or leaf), in bot. , the surface 

 of a leaf ; any flat surface. 

 palaeontology, n., pal'e-6nt*6l'6-ji 

 (Gr. palaios, ancient ; onta, 

 beings ; logos, discourse), that 

 science or sub-division of geology 

 which treats of the plants and 

 animals found fossil in the crust 

 of the earth. 



palaaophy tology, n. , pal'-e 8f'-zt - ol'- 

 O'jl (Gr. palaios, ancient ; phuton, 

 a plant ; logos, discourse), that 

 branch of palaeontology which 

 treats of fossil plants. 

 palaeozoic, a., patfe-d-zo^k (Gr. 

 palaios, ancient ; zoe, life), in 

 geol., applied to the lowest divi- 

 sion of stratified groups in which 

 the earliest known forms of life 

 appear. 



palate, n., pal'-at (L. paldtus, the 

 palate), the upper part or roof 

 of the mouth, consisting of two 

 parts, the hard in front, and the 

 soft behind ; in bot. , the projecting 

 portion of the under lip of person- 

 ate flowers: palatal, a., pattdt-dl, 

 applied to numerous glands which 

 lie between the mucous membrane 

 and the surface of the bone : 

 palatine, a., pdl'-dt-m, same 

 sense as ' palatal ' ; contained or 

 situated within the palate, as 

 nerves or glands : 



