Countermeasure

KOWN-ter-mez-her /ˈkaʊntərmɛʒər/
nounC1GRETOEFLIELTS
formaltechnicalmilitary

An action or device designed to prevent an undesirable effect or to counteract a threat.

It implies a reactive or preventative action specifically taken to nullify or reduce the impact of an opposing action or threat.

The story behind the word. The word 'countermeasure' is a straightforward combination of 'counter-' (meaning 'against' or 'opposite') and 'measure' (meaning 'an action' or 'a step'). It emerged in the mid-20th century, particularly in military and technical contexts, to describe an action specifically taken 'against' an existing or anticipated 'measure' (action) by an adversary. It's a practical term for any defensive or preventative step.

Word relationships

  • defense: Broader term, can refer to the overall system or strategy, not just a specific action.
  • precaution: An action taken in advance to prevent something undesirable, but less about actively nullifying an existing threat.
  • threat: The danger or intention to cause harm, which countermeasures are designed to oppose.
  • vulnerability: A weakness that countermeasures aim to protect against.

Commonly confused with

  • solution: A solution resolves a problem; a countermeasure specifically acts against a threat or undesirable effect.

Collocations

  • electronic countermeasure
  • defensive countermeasure
  • implement countermeasures
  • effective countermeasure

Example sentences

  • "The aircraft deployed electronic countermeasures to confuse the enemy's radar, allowing it to evade detection." Military defense
  • "Implementing strong encryption is a crucial countermeasure against data breaches and cyber espionage." Cybersecurity

Memory hook

A 'COUNTERMEASURE' is a 'MEASURE' taken to 'COUNTER' (go against) a threat. Action Against Threat

When not to use

Do not use 'countermeasure' for general solutions or responses; it implies a specific action against a specific threat or problem.

Fun facts

  • The term became widely used during the Cold War to describe defensive strategies against nuclear attacks and electronic warfare.
  • Chaff and flares deployed by aircraft are classic examples of physical countermeasures against missiles.
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