1.1Communication or direct involvement with someone or something.
‘for a shy person, social interaction can be a stomach-churning, anxiety-filled experience’
‘he built tools to analyse user interactions on social networks’
‘We are getting used to having our everyday interactions mediated and regulated by the authorities.’
‘There were some participants who drank alcohol to facilitate social interactions’
‘A great house facilitates frequent casual interactions among family members.’
‘This type of teacher interaction did not occur four years later during these same students' internship teaching’
‘It all goes well and actually transforms into that spontaneous type of interaction that reporters always seek but rarely find.’
‘If you look at the interactions with my wife in this blog, that appears to be a recurring theme.’
‘The literature on infectious illnesses occurring in day care settings suggests that social interactions with other children outside the home may be important.’
‘I don't want to know about his interactions with other girls.’
‘Members of staff often waste considerable time in organisational aspects of care that could be better used in direct interaction with patients.’
‘Opportunities for this kind of public interaction with strangers brings growth to host and guest and community.’
1.2Physics A particular way in which matter, fields, and atomic and subatomic particles affect one another, e.g. through gravitation or electromagnetism.
‘It is the quantum theory that describes the interaction between light and electric and magnetic forces.’
‘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.’
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