1. having a tendency to lose electrons and form positive ions; having a positive charge or polarity in an electric field
Usage: chemistry term; often used to describe elements or atoms
2. tending to move toward the negative electrode in an electric field
Usage: physics term; less common than the chemistry sense

Examples

• Sodium is an electropositive element that readily donates electrons.
• Metals are generally electropositive and form cations in chemical reactions.
• In the periodic table, electropositive character increases as you move down and to the left.
• Potassium is more electropositive than sodium.
• The electropositive nature of alkali metals makes them highly reactive.