resistence

Resistence is a term commonly misspelled; in English the standard word is resistance. Across disciplines, it denotes opposition or the capacity to withstand a force, influence, or process. Context determines its precise meaning: physical, biological, or social.

In electricity, resistance, symbol R, is the opposition to an electric current. It is measured in ohms, units of volt per ampere. Ohm's law states V = IR. Resistance depends on material, geometry, and temperature; increasing temperature typically raises resistance in metals, while some semiconductors behave oppositely.

In mechanics and materials science, resistance describes opposition to motion or deformation. It can arise from friction, internal damping, or structural strength. Engineers quantify a component’s resistance to loads, wear, and fatigue as part of design.

In biology and medicine, resistance describes the ability of organisms to survive exposure to drugs or stresses. Antibiotic or antimicrobial resistance emerges when pathogens adapt, reducing drug effectiveness. Mechanisms include enzymatic inactivation, target modification, and active efflux; consequences include limited treatment options.

In social and political contexts, resistance refers to organized opposition to authority, policy, or occupation. Civil resistance or nonviolent movements use tactics such as protests, strikes, and boycotts to advance goals without bodily harm. The term captures collective action, perseverance, and strategic noncompliance.

Note on spelling: the standard English term is resistance; "resistence" is a misspelling. The broad concept appears in science, engineering, medicine, and politics, always implying opposition, endurance, or the capacity to withstand external pressure.