GLOSSARY. 



131 



base, and supporting a concave 

 disc or body, with five jointed cy- 

 lindrical arms. 



Pentadac'tyle (Gr. irei/re, pente, 

 five; 8a/cTv\os, dakttulos, a finger). 

 Having five fingers or toes. 



Pen'tagon (Gr. Trez/re, pente, five ; 

 ywvia, gonia, an angle). A figure 

 having five angles. 



Pen'tagraph. See Pantagraph. 



Pentagyn'ia (Gr. irevrf, pente, five ; 

 ywi], gunc, a female). A term 

 applied in the Linnean system to 

 those classes of plants which have 

 five pistils. 



Pentahed'ral (Gr. irei/re, pente, five ; 

 fSpa, ked'ra, a base). Having 

 five equal sides. 



Pentahed'ron (Gr. Trevre, pente, five ; 

 eSpo, hed'ra, a base). A solid 

 figure, having five equal sides. 



Pentam'era (Gr. irevr*, pente, five ; 

 juepos, mer'os, a part). Having five 

 parts ; in zoology, a section of the 

 coleoptera or beetle tribe, having 

 the tarsi of all the feet five- 

 jointed. 



Pentam'eter (Gr. irei/re, pente, five ; 

 fj-erpov, met'ron, a measure). A 

 verse of five feet. 



Pentan'dria (Gr. Trei/re, pente, five ; 

 av-rip, anlr, a man). A class of 

 plants in the Linnaean system, 

 having five distinct stamens. 



Pentan'gular (Gr. irei/re, pente, five ; 

 Lat. an'gulus, an angle). Having 

 five angles. 



PentaphyTlous (Gr. ireire, pente, 

 five ; <t>v\\ov, phullon, a leaf). 

 Having five leaves). 



Pentasper'mous (Gr. irerre, pente, 

 five ; (nrepiua, sperma, a seed). 

 Having five seeds . 



Pen'tastyle (Gr. Trevre, pente. five ; 

 a-Tv\os, stulos, a pillar). A build- 

 ing having five columns in front. 



Penultimate (Lat. pene, almost; 

 ul'timus, last). Last but one. 



Penum'bra (Lat. pene, almost ; urn- 

 bra, a shadow). Partial shade or 

 shadow ; in optics and astronomy, 

 a space on each side of a perfect 

 shadow or eclipse, from which the 

 rays of light are partially cut off 

 by the opaque body ; in painting, 



the part where the shade and light 

 blend with each other. 



Pepsine (Gr. ire-ir, pepto, I digest). 

 The active principle of the gastric 

 juice, which effects digestion. 



Pep'tic (Gr. ire-ir, pepto, I digest). 

 Promoting digestion. 



Per- (Lat.) A preposition used in 

 compound words, signifying through, 

 thoroughly, very, in excess. 



Per Annum (Lat.) By the year. 



Per Cap'ita (Lat ). By the head. 



Percep'tion (Lat. per, by or through; 

 cap'io, I take). The process by which 

 the mind takes notice of external 

 objects. 



Perchlo'rate (Lat. per, through ; 

 chlorine). A salt consisting of per- 

 chloric acid and a base. 



Perchlo'ric (Lat. per, very; chlorine). 

 A term applied to an acid consist- 

 ing of one equivalent of chlorine 

 and seven of oxygen. 



Per'colate (Lat. per, through ; colo, 

 I strain). To strain through. 



Percola'tion (Lat. per, through ; colo, 

 I strain). The act of straining. 



Percur'rent' (Lat. per, through ; 

 curro, I run). Running through 

 from top to bottom. 



Percus'sion (Lat. percut'io, I strike). 

 A striking. 



Peren'nial (Lat. per, through ; an- 

 nus, a year). Lasting through 

 several or many years. 



Perennibran'chiate (Lat. peren'nis, 

 lasting ; Gr. fipayxut, bran'chia, 

 gills). Having lasting gills ; ap- 

 plied to batrachian reptiles in 

 which the gills remain throughout 

 life. 



Perfo'liate (Lat. per, through ; fo'- 

 lium, a leaf). Applied to leaves 

 which have the lobes at the base 

 united, so as to surround the stem, 

 as if the stem ran through them. 



Perl- (Gr. Trept, per'i, around). A 

 preposition in compound words, 

 signifying around. 



Perianth. (Gr.7Tpi,^e?*'i, about: avQos, 

 anthos, a flower). A term applied 

 to the calyx and corolla of flowers ; 

 especially when they cannot be 

 easily distinguished from each 

 other. 



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