GLOSSARY. 



127 



long peduncles coming off in the 

 manner of a raceme, as in grasses. 



Panic'ulate (Lat. panic'ula). Hav- 

 ing flowers arranged in panicles. 



Panora'ma (Gr. irav, pan, all ; 6paa), 

 horao, I see). An entire view ; a 

 form of picture in which all the 

 objects that can be seen from a 

 single point are represented on the 

 inner surface of a round or cylin- 

 drical wall. 



Pan'tograph (Gr. irav, pan, all j 

 ypatyw, graphd, I write). An in- 

 strument for copying drawings. 



Pantom'eter (Gr. irav, pan, all ; 

 fter/jov, met'ron, a measure). An 

 instrument for measuring all kinds 

 of elevations, angles, and distances. 



Papavera'ceous (Lat. papa'ver, a 

 poppy). Belonging to the order of 

 plants of which the poppy is the 

 type. 



Papiliona'ceous (Lat. papil'io, a 

 butterfly). Resembling a butter- 

 fly : applied to plants of the legu- 

 minous order, as the pea, from the 

 shape of the flowers. 



Papilla (Lat. a nipple). A small 

 conical or cylindrical projection of 

 the skin or mucous membrane, 

 containing blood-vessels and nerves, 

 and serving sometimes to extend 

 the surface, and sometimes for re- 

 ceiving impressions made on the 

 extremities of the nerves. 



Papillary (Lat. papU'la). Consist- 

 ing of or provided with papillae. 



Pap'illated or Pap'iilose (Lat. pa- 

 pii'la). Covered with small nipple- 

 like prominences. 



Pappose (Lat. pappus, down). 

 Downy. 



Pap'ulae (Lat. plural of pap'ula, a 

 kind of pimple). Pimples. 



Papyra'ceous (Lat. papyrus, paper). 

 Papery : of the nature or consis- 

 tence of paper. 



Par 'a- (Gr. napa, par'a). A Greek 

 preposition used in compound words, 

 signifying close to, side by side, 

 beyond, passing through, or con- 

 trary. 



Parab'ola (Gr. -jrapa, par'a, beyond ; 

 jSaAAco, ballo, 1 cast ; probably 

 from being the curve described in 



the motion of projectiles). The 

 tigure produced by cutting a cone 

 by a plane parallel to one of its 

 sides. 



Parabolic (Parab'ola). Having the 

 form of, or relating to, a parabola, 



Parab'oloid (Parab'ola; Gr. etSos, 

 eidos, form). The solid body pro- 

 duced by the revolution of a paro- 

 bola about its axis. 



Paracente'sis (Gr. irapa, par'a, 

 beyond ; /cerreco, Tctmfted, I pierce). 

 The operation of perforating a part 

 of the body to allow the escape of 

 fluid. 



Paracen'tric (Gr. napa, par'a, be- 

 yond ; Kfvrpov, kentron, a centre;. 

 Deviating from the curve which 

 would form a circle. 



Par'adox (Gr. irapa, par'a, beyond ; 

 5oa, doxa, opinion). Something 

 that seems at first to be contrary 

 to received opinion, or absurd. 



Par'affin (Lat. parum, little ; affi'nis, 

 allied to). A substance obtained 

 from tar, remarkable for its resis- 

 tence to strong chemical agents, and 

 for not being known to combine in 

 a definite manner with any other 

 body. 



Parago'ge' (Gr. irapa, paSa, be- 

 yond ; 070), ago, I draw). The 

 addition of a letter or syllable to 

 the end of a word. 



Parallac'tic (Gr. irapa, par'a, be- 

 yond ; rt/\Aa<r(rci>, alias so, I change). 

 Belonging to the parallax. Paral- 

 lactic inequality in the moon's 

 course is the inequality dependent 

 on the difference between the dis- 

 turbing forces exercised by the sun 

 in conjunction and opposition. 



Par'allax (Gr. irapa, par'a, beyond ; 

 dA.Aao-o-0), alias' so, I change). The 

 apparent change in the position of 

 an object, according to the point 

 from which it is viewed. Diurnal 

 parallax is the difference between 

 the place of a celestial body as seen 

 from the surface, and that in which 

 it would appear if seen from the 

 centre, of the earth. Horizontal 

 parallax is the greatest amount of 

 diurnal parallax, occurring when 

 the object is in the horizon. An- 



