n :  the Lancefield group of beta-hemolytic streptococci that comprises all strains of a species of the genus Streptococcus (S. pyogenes) and that includes the causative agents of pharyngitis, scarlet fever, septicemia, some skin infections (as pyoderma and erysipelas), rheumatic fever, and glomerulonephritis - often used attributively <Group A streptococcal infections>  - compare GROUP B  .
 
 
 
Similar sounding terms:  carpi  crop  croup  CrP or CRP 
 
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