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bacteraemia
bacteremia
bacteri-
bacteria
bacterial
bacterial artificial chromosome
bacterial vaginosis
bactericide
bacterio-
bacteriochlorophyll
bacteriol.
bacteriology
bacteriolysis
bacteriophage
bacterioplankton
bacteriostasis
bacteriostat
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bad apple

bad ap·ple (plural bad ap·ples)


noun 
Definition:
 
bad influence: somebody thought to be a bad influence on others ( informal )

[< the idea that one bad apple can spoil a whole batch]
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