ELECTRWITF. 47 



Diamag'netism. — The science which treats of diamagnetic 

 lihciiomena and of the properties of diamagnetic bodies. 



Elec'tro-Biol'ogy. — The science of electrical forces as shown 

 ill mesnierisui. 



Electro-Chemistry. — The science which treats of the agency 

 of electricity and galvanism in effecting chemical changes. 



Elec'trode. — A name applied to what is called the pole of the 

 voltaic circle. The electrodes are the surfaces of air, water, 

 metal, etc., which serve to convey an electric current into 

 and from the liquid to be decomposed. 



Elec'tro-Dynam'ics. — The phenomena of electricity in motion. 



Electrorysis. — The act of decomposing a compound substance 

 by the action of electricity or galvanism. 



Elec'trolyte. — A compound which may be directly decomposed 

 by an electric cui'rent. 



Elec'tro-Mag'net. — A bar of iron made temporarily magnetic 

 by causing a current of electricity to pass through a wire 

 coiled around it. 



Elec'tro-Mag'netism. — The science which treats of the 

 agencij of electricity and galvanism in communicating mag- 

 netic properties. 



Elec'tro-Met'allurgy. — The art of depositing metals on pre- 

 pared surfaces through the agency of voltaic electricity or 

 galvanism. 



Electrom'eter (Gr. eleldron, amber, and metreo^ I measure). 

 — An instrument for measuring the quantity or intensity 

 of electricity. 



Electro-Physid'ogy. — Electric results produced through phys- 

 iological agencies. 



Elec'tro-Stat'ics (Gr. cleldron^ amber, and statikos, belonging 

 to a state of rest). — The science which treats of elec- 

 tricity in equilibrium, as distinguished from electro- 

 dynamics. 



Gal'vanism. — Electrical phenomena in which the electricity is 

 developed icithout the aid of friction, and in which a 

 chemical action takes place between certain bodies. 



Galvanology (galvanism, and Gr. logos, a discourse). — A 

 treatise on galvanism, or a description of its phenomena. 



Galvanom'eter, or Rheometer (galvanism, and Gr. metron, 

 measure). — An instrument or apparatus for measuring the 

 force or detecting the presence of minute quantities of 

 galvanic electricity. 



