Dictionary

Group B

noun

Definition of GROUP B

:  any of various strains of a streptococcus (Streptococcus agalactiae) that include the causative agents of certain infections (as pneumonia and meningitis) especially of newborn infants <Group B streptococcal infections>

First Known Use of GROUP B

1965

Group B

noun \-ˈbē\   (Medical Dictionary)

Medical Definition of GROUP B

:  the Lancefield group of usually beta-hemolytic streptococci that comprises all strains of a species of the genus Streptococcus (S. agalactiae) and that includes the causative agents of certain infections (as septicemia, pneumonia, and meningitis) especially of newborn infants—usually used attributively <affected with Group B strep>; compare group a

Browse

Next Word in the Dictionary: group bankingPrevious Word in the Dictionary: group annuityAll Words Near: Group B
April 19, 2015
desiccate Hear it
to dry up or become dried up
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears