resistance

[ ri-zis-tuhns ]
/ rɪˈzɪs təns /

noun

the act or power of resisting, opposing, or withstanding.
the opposition offered by one thing, force, etc., to another.
Electricity.
  1. Also called ohmic resistance. a property of a conductor by virtue of which the passage of current is opposed, causing electric energy to be transformed into heat: equal to the voltage across the conductor divided by the current flowing in the conductor: usually measured in ohms. Abbreviation: R
  2. a conductor or coil offering such opposition; resistor.
Psychiatry. opposition to an attempt to bring repressed thoughts or feelings into consciousness.
(often initial capital letter) an underground organization composed of groups of private individuals working as an opposition force in a conquered country to overthrow the occupying power, usually by acts of sabotage, guerrilla warfare, etc.: the resistance during the German occupation in World War II.
Stock Exchange. resistance level.

Origin of resistance

1300–50; Middle English < Middle French. See resist, -ance

Related forms

in·ter·re·sist·ance, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for resistance

British Dictionary definitions for resistance (1 of 2)

resistance

/ (rɪˈzɪstəns) /

noun

British Dictionary definitions for resistance (2 of 2)

Resistance

/ (rɪˈzɪstəns) /

noun

the Resistance an illegal organization fighting for national liberty in a country under enemy occupation, esp in France during World War II
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for resistance

resistance

[ rĭ-zĭstəns ]

n.

The capacity of an organism to defend itself against a disease.
The capacity of an organism, a tissue, or a cell to withstand the effects of a harmful physical or environmental agent.
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.
In psychoanalysis, a process in which the ego opposes the conscious recall of repressed unpleasant experiences.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for resistance

resistance

[ rĭ-zĭstəns ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for resistance

resistance


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

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with resistance

resistance


see least resistance.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.