chemistry
US /ˈkem.ə.stri/
UK /ˈkem.ə.stri/
1.
the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances
:
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She is studying chemistry at university.
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The experiment involved complex organic chemistry.
2.
the complex emotional or psychological interaction between two people
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There was an undeniable chemistry between them.
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The band had great chemistry on stage.