electropositivemedical dictionary

1. <chemistry, 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 electronegative. Usually refers to an element whose atoms tend to lose electrons; e.g., sodium, potassium, calcium.

An element that is electropositive in one compound may be electronegative in another, and vice versa.

2. <chemistry> Hence: Positive; metallic; basic; distinguished from negative, nonmetallic, or acid.

<chemistry> A body which passes to the negative pole in electrolysis.

(21 Jun 2000)