fixation : Idioms & Phrases
complement fixation
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noun an immune response in which an antigen-antibody combination inactivates a complement (so it is unavailable to participate in a second antigen-antibody combination)
WordNet
complement fixation test
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noun a blood test in which a sample of serum is exposed to a particular antigen and complement in order to determine whether or not antibodies to that particular antigen are present; used as a diagnostic test
WordNet
infantile fixation
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noun an abnormal state in which development has stopped prematurely
fixation; regression; arrested development.
WordNet
nitrogen fixation
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noun the assimilation of atmospheric nitrogen by soil bacteria and its release for plant use on the death of the bacteria
