\E*lec`tro-pos"i*tive\, a.
1. (Physics) Of such a nature relatively to some other
   associated body or bodies, as to tend to the negative pole
   of a voltaic battery, in electrolysis, while the
   associated body tends to the positive pole; -- the
   converse or correlative of electro-negative.
Note: An element that is electro-positive in one compound may
      be electro-negative in another, and vice versa.
2. (Chem.) Hence: Positive; metallic; basic; -- distinguished
   from negative, nonmetallic, or acid.

\E*lec`tro-pos"i*tive\, n. (Chem. & Physics)
A body which passes to the negative pole in electrolysis.