1. (noun)resistance, opposition the action of opposing something that you disapprove or disagree with "he encountered a general feeling of resistance from many citizens"; "despite opposition from the newspapers he went ahead"
2. (noun)resistance any mechanical force that tends to retard or oppose motion
3. (noun)electric resistance, electrical resistance, impedance, resistance, resistivity, ohmic resistance a material's opposition to the flow of electric current; measured in ohms
4. (noun)resistance the militaryaction of resisting the enemy's advance "the enemy offered little resistance"
6. (noun)resistance the capacity of an organism to defend itself against harmful environmental agents "these trees are widely planted because of their resistance to salt and smog"
8. (noun)resistance the degree of unresponsiveness of a disease-causing microorganism to antibiotics or other drugs (as in penicillin-resistant bacteria)
Definition of 'resistance' 
