PUN 



346 



PUS 



krd-ent'a (L. punctus, a sting, a 

 point ; vasculum, a small vessel ; 

 cruentus, stained with blood), in 

 anat., the numerous minute red 

 dots, produced by the escape of 

 blood from divided blood- 

 vessels, which stud the surface of 

 the white central mass of the 

 cerebrum : punctum lachrymale, 

 pungk f -tum lak'rim-dl'e (L. 

 punctus, pierced, punctured ; ( 

 lachrima, a tear), a small j 

 aperture which perforates each 

 papilla of the papilla lachrymale: 

 punctum caecum, sek'-tim (L. 

 ccecus, blind), a point in the 

 retina from w T hich the optic 

 nerve fibres radiate, so named 

 because insensible to light : 

 p. vegetationis, vcdy'St-a'-shi-on'-is 

 (L. vegetdtio, a quickening, 

 vegetation, vegetdtionis, of a 

 quickening), in bot., the point of 

 vegetation or growth in a plant. 



punctate, a., pungk r -tdt, also 

 punctated, a., pungk'-tdt-ed (L. 

 punctum, a point, a small hole), 

 in bot. , having the surface covered 

 with small holes or dots ; dotted. 



Punica, n., pun'-ik-a (L. pumcus, 

 of or from the Pceni or Carthag- 

 inians], a genus of plants, Ord. 

 MyrtaceaB : Punica granatum, 

 gran-at'iim (L. grdndtus, having 

 many grains or seeds from 

 grdnum, a seed ; granatum, a 

 pomegranate), the pomegranate 

 tree, which produces dark scarlet 

 flowers, used as an astringent, 

 and the rind of the fruit and 

 the bark of the root used as 

 anthelmintics, especially in tape- 

 worm. 



pupa, n., pup'-a, pupae, n. plu., 

 pup'-e (L. pupa, a doll or puppet), 

 the third or last state but one 

 of insect existence the first being 

 the egg, the second the cater- 

 pillar, the third the pupa or 

 chrysalis, and the fourth or per- 

 fect insect state the imago. 



pupil, n., pup'il (L. pupilla, a 

 little girl from pupa, a girl, a 



doll ; It pupilla, the eye-ball), 

 the opening in the iris of the eye 

 through which the rays of light 

 pass to the retina. 



purgative, a., perg'-at-w (I/. 

 purgo, I purify), having the 

 power of evacuating the bowels : 

 n., a medicine that causes 

 frequent evacuations of the 

 bowels. 



purples, n. plu., pvrp'-lz, also 

 called ear-cockles, or peppercorn, 

 a disease affecting the grains of 

 wheat, in which the grains be- 

 come first of a dark-green, and 

 ultimately of a black colour, 

 caused by the animal parasite 

 vibrio trilici, or eel of the wheat. 



purpura, n., perp'-ur-a (L. purp~ 

 ura, the shell-fish which yields 

 purple), a disease accompanied 

 by an eruption of spots on 

 the skin called petechise, or 

 patches called ecchymoses, caused 

 by haemorrhage into the skin, 

 and which vary in tint from 

 bright red to violet : purpuric, 

 a., perp'tir'-ik, denoting an acid 

 of a purple colour, obtained from 

 excrement of the boa-constrictor, 

 and also from urinary calculi ; of 

 or pert, to purpura : purpuric 

 fever, a fever occasionally accom- 

 panying purpura. 



purulent, a., pur'ul-ent (purul- 

 entus, full of corrupt matter 

 frompiis, the viscous matter of a 

 sore ; puris, of the matter of a 

 sore), consisting of pus or corrupt 

 matter : purulence, n. , piir'-ul' 

 ens, the formation of pus or 

 matter : pus, n., pus, the fluid 

 matter contained in abscesses, 

 and discharged from the surfaces 

 of ulcers and granulating wounds, 

 healthy pus being of a white or 

 pale-yellow colour : ichorous pus, 

 the foetid and dirty fluid dis- 

 charged from foul and unhealthy 

 ulcers, or from abscesses in those 

 of a vitiated constitution. 



pustule, n. , pust'ul (L. pustula, a 

 blister or pimple from pus, 



