Voltaic  Couple. — Any  two  materials,  gen-
erally dissimilar  metals,  which  are  capa'
ble  of  acting  as  an  electric  source  wheii
dipped  into  an  electrolyte.
Voltaic  Coupler. — Any  device  by  means
of  which  voltaic  cells  may  be  readily
coupled  or  connected  in  different  varieties
of  circuits.
Voltaic  Effect.— The  difference  of  poten-
tial observed  at  the  point  of  contact  of
dissimilar  metals.
Voltaic  Electricity. — The  difference  of
potential  produced  by  a  voltaic  cell  or
battery.
Voltaic  Electromotive  Force.— A  term
sometimes  used  for  the  electromotive
force  generated  at  the  electrodes  of  an
electrolytic  cell  in  contradistinction  to
the  counter-electromotive  force  produced
at  such  electrodes  before  polarization.
Voltaic  Elements. — Two  metals  or  sub-
stances which  form  a  voltaic  couple.
Voltaic  Endosmose. — A  term  sometimes
used  for  electric  osmose  or  endosmose.
Voltaic  Force.— A  word  sometimes  used
for  voltaic  electromotive  force.
Voltaic  Heat  Cell. — A  cell  by  means  of

which  heat  energy  is  changed  or  converted

into  electric  energy.
Voltaic    Impulse. — A  word    sometimes

used  for  the  electromotive  impulse  of  a

voltaic  couple.
Voltaic  Induction. — A  word  sometimes

used  for  current  induction.
Voltaic  Magnet. — An  unnecessary  term
sometimes  employed  for  a  solenoid  or
electro-magnetic  helix.
Voltaic  Pair. — A  voltaic  couple.
Voltaic  Pile. — A  word  sometimes  used
for  voltaic  battery.
Voltaism. — (1)  A  word  sometimes  em-
ployed in  electro-therapeutics  for  treat-
ment by  means  of  the  voltaic  current.
(2)  The  production  of  electricity  by  means
of  voltaic  couples.
Voltameter. — An  electrolytic  cell  em-
ployed for  measuring  the  quantity  of
electric  current  passing  through  it,  by
the  amount  of  chemical  decomposition
affected  in  a  given  time.
Vol.]


983


[Wai.
