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fixation US English

An obsessive interest in or feeling about someone or something

fixation US Thesaurus

his sports fixation has gotten intolerable

carbon fixation US English

The incorporation of carbon into organic compounds by living organisms, chiefly by photosynthesis in green plants

nitrogen fixation US English

The chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle

complement fixation test US English

A test for infection with a microorganism that involves measuring the amount of complement available in serum to bind with an antibody-antigen complex