GLOSSARY. 



21 



Batra'cMa (Or. fiarpaxos, batfrachos, 

 a frog). The order of reptiles of 

 which the frog is the type. 



Batra'chian (Gr.jSarpaxos, bat'rachos, 

 a frog). Belonging to the order of 

 animals of which the frog is the 

 type. 



Baf tery. In chemistry, an apparatus 

 of coated jars for electrical action, 

 or of portions of zinc and copper, 

 used for producing electro-chemical 

 or voltaic action. 



Belem/nite (Gr. /SeAe/ii/oc, belemnon, 

 a dart). Arrow-head ; also called 

 thunderbolt ; a fossil shell of the 

 cephalopod order, found in chalk 

 and limestone. 



Bell-metal. An alloy of copper and 

 tin used in making bells. 



Ben'zoate (Benzoin). A salt formed 

 of benzoic acid with a base. 



Bergmehl (Swedish, mountain-meal). 

 A whitish, mealy earth, contain- 

 ing infusorial animalcules, said to 

 be eaten by the Finns and Laplan- 

 ders in scarcity. 



Bi (Lat. bis, twice). A prefix signi- 

 fying twice or twofold. 



Biba'sic (Lat. bis, twice ; base). In 

 chemistry, applied to acids which 

 unite with two equivalents of base 

 to form salts. 



Bib'ulous (Lat. bibo, I drink). 

 Spongy ; having the property of 

 imbibing moisture. 



Bicar'bonate (Lat. bis, twice ; carbo- 

 nate). A carbonate containing two 

 equivalents of carbonic acid, to 

 one of base. 



Bicen'tral (Lat. bis, twice ; centrum, 

 a centre). Having two centres. 



Bi'ceps (Lat. bis, twice ; cap'ut, 

 a head). Having two heads ; 

 in anatomy, applied to certain 

 muscles. 



Bichlo'ride(Lat. bis, twice ; chlorine). 

 A compound consisting of two 

 equivalents of chlorine with one of 

 another element. 



Bicip'ital (Lat. bis, twice ; cap'ut, a 

 head). Belonging to that which 

 has two heads. 



Bicuspid (Lat. bis, twice ; cuspis, the 

 point of a spear). Having two 

 points or faugs. 



Bidens (Lat. bis, twice ; dens, a 



tooth). Having two teeth or prongs. 

 Bien'nial (Lat. bis, twice ; annus, a 



year). Continuing two years ; or 



occurring every second year. 

 Bifid (Lat. bis, twice ; findo, I cleave). 



Cleft in two parts. 

 Bi'forcated (Lat. bis, twice ; furca, a 



fork). Divided into two prongs or 



forks. 

 Bifurca'tion (Lat. bis, double ; furca, 



a fork). A division into two 



branches. 

 Bigem'inal (Lat. bis, twice ; gem'ini, 



twins). Arranged in two pairs. 

 Bi'hamate (Lat. bis, twice ; hamus, 



a hook). Having two hooks. 

 Bi'jugate (Lat. bis, twice ; jugum, a 



yoke). In botany, having two pairs 



of leaflets. 

 Bila'biate (Lat. bis, twice ; la'bium, a 



lip). Having two lips. 

 Bilat'eral (Lat. bis, twice ; lotus, a 



side). Having two sides. 

 Bil'iary (Lat. bills, bile). Belonging 



to or containing bile. 

 Bilit'eral (Lat. bis, twice ; lit'era, a 



letter). Containing two letters. 

 Bilo'bed (Lat. bis, twice ; Gr. \o0os, 



lobos, a lobe). Having two lobes. 

 Biloc'ular (Lat. bis, twice ; loc'ulus, 



a little place). Containing two cells. 

 Bi'manous (Lat. bis, twice ; manus, 



a hand). Having two hands : ap- 

 plied in zoology to man. 

 Bi'nary (Lat. bini, two and two). 



Arranged in couples. 

 Bi'nary Theory of Salts. In chemistry. 



a theory which supposes that oxygen 



salts are constituted on the same 



plan as haloid salts (as chloride of 



sodium), of a metal in union with a 



salt-radical. 

 Bi'nate (Lat. bini, two and two). In 



botany, applied to compound leaves, 



the leaflets of which come off in two 



from a single point. 

 Binax'ial (Lat. bini, two and two ; 



axis). Having two axes. 

 Binoc'ular (Lat. bini, two and two ; 



oc'ulus, an eye). Having two eyes ; 



also applied to optical instrumeuts 



that have two apertures, so that 



both eyes may be used at once. 

 Bino'mial (Lat. bis, twice ; nomen, a 



