Definition of interaction in US English:



  • 1Reciprocal action or influence.

    ‘ongoing interaction between the two languages’
    • ‘Globalization of economies means interaction between them on a much higher scale.’
    • ‘She said a key theme was the interaction between the private and voluntary sectors.’
    • ‘The interaction between land and sea is not dealt with very well in any other game of which I know.’
    • ‘There will be no need or time for interaction between the two sets of pupils.’
    • ‘What sorts of interaction between semantic and non-semantic features can be expected?’
    • ‘Not all drug interactions are known or reported in the literature, and new drug interactions are continually being reported.’
    • ‘If no interaction between two drugs is listed, does that mean no interaction exists?’
    • ‘Influences may change over time, and interaction between them is negative and positive.’
    • ‘We want to encourage interaction between local people and people in the centres.’
    • ‘There is a lot of interaction between boys and girls, rural kids and town kids and also the parents.’
    • ‘There is no human contact, just interaction between text and the reader.’
    • ‘It all comes down to the interaction between movement of people and the labour market.’
    • ‘There has been a lot of interaction between the two towns during the last ten years.’
    • ‘There was no interaction between the minister and the department over this matter.’
    • ‘I personally think this is correct, and there is interaction between the two populations.’
    • ‘There has been interaction between the two cities for more than a thousand years.’
    • ‘The possibilities of the interaction between states intrigues me, obviously.’
    • ‘She said there was little positive interaction between officers and prisoners.’
    • ‘There followed a centuries-long period of interaction between the rulers of Sudan and Egypt.’
    • ‘The interaction between the various walks of life inside the team was what made it so great.’
    action, activity, operation, movement, motion, agency, employment, working, function, functioning, exercise, interplay
    View synonyms
    1. 1.1 Communication or direct involvement with someone or something.
      ‘for a shy person, social interaction can be a stomach-churning, anxiety-filled experience’
      count noun ‘he built tools to analyze user interactions on social networks’
    2. 1.2Physics A particular way in which matter, fields, and atomic and subatomic particles affect one another, e.g. through gravitation or electromagnetism.
      • ‘Physics is the science which deals with properties and interactions of matter and energy.’
      • ‘The protons are set in motion and, being charged, they again deposit energy through electrical interactions.’
      • ‘The interaction with the first entangled light beam meant the original laser beam was lost in the process.’
      • ‘So you have now a chance to look at light matter interactions on a very small scale.’
      • ‘It is the quantum theory that describes the interaction between light and electric and magnetic forces.’