nonprecipitating antibody

non·pre·cip·i·tat·ing an·ti·bod·y

antibody that, under conditions normally employed in precipitin tests, is refractory to precipitation by specific antibody, demonstrable when antigen is added serially in small amounts; nonprecipitating antibody will precipitate under special conditions such as addition of complement.

Synonym(s): nonprecipitable antibody