alpha-hemolytic streptococci

(redirected from a-hemolytic streptococci)
Also found in: Dictionary, Thesaurus, Encyclopedia.

α-hemolytic strep·to·coc·ci

streptococci that form a green variety of reduced hemoglobin in the area of the colony on a blood agar medium.
See also: Streptococcus viridans.
Farlex Partner Medical Dictionary © Farlex 2012

α-hemolytic streptococci

Streptococci that, when grown on blood-agar, produce a zone of partial hemolysis around each colony and often impart a greenish appearance to the agar. Included are S. pneumoniae and viridans group streptococci.
See also: streptococcus
Medical Dictionary, © 2009 Farlex and Partners