radioallergosorbent test
nounMedical Definition of radioallergosorbent test
: a radioimmunoassay for specific antibodies of immunoglobulin class IgE in which an insoluble matrix containing allergenic antigens is reacted with a sample of antibody-containing serum and then reacted again with antihuman antibodies against individual IgE antibodies to make specific determinations
—abbreviation RAST