anti-streptolysin O titresmedical dictionary

<immunology, microbiology> A special serologic test, known as anti-streptolysin O, that measures the quantity of antibody to a component of streptococcal bacteria.

A useful diagnostic test for scarlet fever, rheumatic fever and other streptococcal disease.

American spelling: anti-streptolysin O titers

(13 Jan 1998)