140 



GLOSSARY. 



come full). Having a full habit of 

 body. 



Pleu'ra (Gr. irXsvpa, pleu'ra, a rib). 

 The serous membrane which lines 

 the interior of the chest and covers 

 the lungs. 



Pleural'gia (Gr. ir\evpa, pleu'ra, a 

 rib ; 0X705, alg'os, pain). Pain in 

 the side. 



Pleurapoph'ysis (Gr. TrAevpa, pleu'ra, 

 a rib; apoph'ysis). A name given 

 to the bone projecting from the 

 typical vertebra, which forms the 

 first part of the haemal arch on 

 each side ; a rib. 



Pleuren'chyma (Gr. ir\evpa, pleu'ra, 

 a rib ; e7xuyua, en'chuma, a tissue). 

 Woody tissue in plants. 



Pleu'risy (Pleura). Inflammation of 

 the pleura or serous lining of the 

 chest. 



Pleurific (Pleuri'tis). Belonging to 

 or having pleurisy. 



Pleuri'tis (Pleura; itis, denoting 

 inflammation). Pleurisy. 



Pleu'rodont (Gr. irtevpa, pleu'ra, a 

 rib or the side ; oSovs, odous, a 

 tooth). A term applied to saurian 

 reptiles which have the teeth 

 anchylosed to the bottom of an 

 alveolar groove, and supported by 

 its side. 



Pleurorhi'zal (Gr. trXevpa, pleu'ra, a 

 rib; pia, rhiza, a root). Having 

 the radicle applied to the edges of 

 the cotyledons. 



Plex'iform (Lat. plex'us, a network ; 

 for'ma, shape). Having the form 

 of a network. 



Plexus (Lat., a network). An inter- 

 weaving or network ; in anatomy, 

 a term applied to an arrangement 

 of blood-vessels, absorbent vessels, 

 or nerves in the form of a network. 



Pli'cate (Lat. pli'ca, a fold). Folded. 



Plinth (Gr. irhiveos, plinth 'os, a brick 

 or tile). In architecture, the flat 

 square table under the moulding of 

 the base and pedestal of a column, 

 serving as the foundation. 



Pli'ocene. See Plei'ocene. 



Plu'mose (Lat. plu'ma, a small feather, 

 or down). Feathery ; resembling 

 feathers. 



Plu'mule (Lat. plu'mula, a little 



feather). In botany, the growing 

 point of the embryo in the seed, 

 representing the future stem of the 

 plant. 



Plural (Lat. plus, more). Relating 

 to more than one ; but, in the 

 grammars of the Greek and some 

 other languages, expressing more 

 than two. 



Pluri- (Lat. plus, more). A prefix 

 in compound words, signifying 

 several. 



Plurilit'eral (Lat. plus, more ; lit 1 era, 

 a letter). Containing more than 

 three letters. 



Plutonic (Lat. Pluto, the god of the 

 lower regions). In geology, applied 

 to rocks formed by the agency of 

 fire at some depth below the surface 

 of the land or sea. 



Plu'vial (Lat. plu'ma, rain). Rainy; 

 relating to rain. 



Pluviam'eter (Lat. plu'via, rain ; Gr. 

 fj.(Tpov, met'ron, a measure). A 

 rain-gauge ; an instrument for mea- 

 suring the amount of rain which 

 falls. 



Pneumatic (Gr. Trvev^a, pneu'ma, 

 air). Consisting of, or pertaining 

 to air ; moved by means of air. 



Pneumatic Trough. A trough filled 

 with water or mercury, and pro- 

 vided with a perforated shelf for 

 holding inverted jars or receivers, 

 used in chemistry for collecting 



Pneumatics (Gr. wey/ma, pneu'ma, 

 air.) The branch of natural philo- 

 sophy which describes th e mechanical 

 properties of air and gases, as well 

 as those machines which act by 

 application of these properties. 



Pneu'mato-(Gr.7ri/u^a, pneu'ma, air). 

 A prefix in compound words, im- 

 plying relation to, or connection with 

 air or breath. 



Pneumatochemlcal (Gr. Tn/ei^ua, 

 pneu'ma, air ; cliem'ical). Relating 

 to the chemistry of air or gases. 



Pneumatol'ogy (Gr. Trvei^a, pneu'ma, 

 air ; Ao7<>y, log'os, discourse). A 

 description of air or breath. 



Pneumatotho'rax or Pneumotho'rax 

 (Gr. irffvfj.a, pneu'ma, air ; 0o>/>a, 

 thorax, the chest). Air in the 



