BATRACHOPLASTY 



198 



BATTERY 



Batrachoplasty {bat' ' -rak-o-plas-te) [fiarpaxog, a frog ; 

 ranuia ; ir'Aaaaecv , to mold]. Plastic surgical opera- 

 tion for the cure of ranuia. 



Batrachostomous (bat-rak-os' -to-mus) [3drpojof, "a 

 frog; ardfia, mouth]. In biology, frog-mouthed. 



Batrachus {bat'-rak-iis) [/idrpajoc, a frog]. Ranuia. 



Battalism (bat' -al-izni) . See Battarism. 



Battarism (bat' -ar-izni) [(iaTTapiouoq ,a stuttering]. Stut- 

 tering or stammering. 



Battery (bat'-er-e) \batteria,& beating; battery]. A 

 series of two or more pieces of apparatus arranged 

 to produce increased or multiple effect, as battery 

 of boilers, prisms, lenses, galvanic cells. Usually 

 applied to a series of cells producing electricity (vol- 

 taic or galvanic battery) ; also, frequently to a single 

 cell. B., Primary, the combination of a number of 

 primary cells so as to form a single battery. B., Sec- 

 ondary, the combination of a number of storage cells 

 to form a single electric source. The following 

 table shows the materials used in the more important 

 batteries, and the electro-motive force (E. M. F. ) in 

 volts. Storage or secondary batteries are not included 

 in the table. The common form of these is a series 

 of lead plates carrying masses of lead oxid. 



Grenet Cell for Therapeutic Apparatus. 



