Petri dish
noun [ C ] (also petri dish) uk/ˈpet.ri ˌdɪʃ/ us/ˈpiː.tri ˌdɪʃ/
（尤指用于培养细菌的）皮氏培养皿
a small, clear, round dish with a cover, used in scientific tests especially for growing bacteria
Researchers created a tissue-like layer of cells in a Petri dish.
She spent the morning photographing mould and bacteria samples on petri dishes.