Petri dish

(microbiology) to culture

(microbiology) culture

bacterium; germ

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(microbiology) culture liquid

bacteriology

bacteriologist