ohmic resistance

resistance

In electricity, a measurement of the difficulty encountered by a power source in forcing electric current through an electrical circuit, and hence the amount of power dissipated in the circuit. Resistance is measured in ohms.

resistance

An increased supply of a security. Compare support.

Main Entry: re·sis·tance
Pronunciation: ri-'zis-t&n(t)s
Function: noun
1 a : power or capacity to resist; especially : the inherent ability of an organism to resist harmful influences (as disease, toxic agents, or infection) b : the capacity of a species or strain of microorganism to surviveexposure to a toxic agent (as a drug) formerly effective against it due to genetic mutation and selection for and accumulation of genes conferring protection from the agent especially as a result ofoveruse of the agent which selectively destroys individual microorganisms lacking the protective genes
2 : the opposition offered by a body to the passage through it of a steadyelectric current
3 : a psychological defense mechanism wherein a psychoanalysis patient rejects, denies, or otherwise opposes therapeutic efforts by the analyst

resistance re·sis·tance (rĭ-zĭs'təns)
n.

1. The capacity of an organism to defend itself against a disease.

2. The capacity of an organism, a tissue, or a cell to withstand the effects of a harmful physical or environmental agent.

3. The opposition of a body or substance to current passing through it, resulting in a change of electrical energy into heat or another form of energy.

4. In psychoanalysis, a process in which the ego opposes the conscious recall of repressed unpleasant experiences.

resistance   (rĭ-zĭs'təns)  Pronunciation Key  A force, such as friction, that operates opposite the direction of motion of a body and tends to prevent or slow down the body's motion. A measure of the degree to which a substance impedes the flow of electric current induced by a voltage. Resistance is measured in ohms. Good conductors, such as copper, have low resistance. Good insulators, such as rubber, have high resistance. Resistance causes electrical energy to be dissipated as heat. See also Ohm's law. The capacity of an organism, tissue, or cell to withstand the effects of a harmful physical or environmental agent, such as a microorganism or pollutant.