1. Relating to or charged with positive electricity. 2. Referring to an element whose atoms tend to lose electrons; e.g., sodium, potassium, calcium.
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elec·tro·pos·i·tive i-.lek-trō-'päz-ət-iv, -'päz-tiv adj
1) charged with positive electricity
2) having a tendency to release electrons
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elec·tro·pos·i·tive (e-lek″tro-pozґĭ-tiv) [electro- + positive] bearing a positive electric charge.Medical dictionary. 2011.