umls-concept:C0318154 | skos:definition | NCI: A bacterium that is assigned to the genus Streptococcus that is able to facilitate the complete rupturing of red blood cells, thus producing wide, clear, zones around colonies on blood agar plates.,NCI: A bacteria that is assigned to the genus Streptococcus that is able to facilitate the complete rupturing of red blood cells, thus producing wide, clear, zones around colonies on blood agar plates. | lld:umls |