petri
n. C1 Advanced US //ˈpɛtɹi// petri
n. a small dish used in science to grow bacteria or other tiny living things. It is usually made of glass and has a flat bottom.
n. a shallow glass dish used in microbiology to culture microorganisms. Named after the German scientist Julius Petri.
The scientist placed the bacteria in a petri dish.
After collecting the soil sample, the researcher carefully transferred the microbes into a sterile petri dish to observe their growth.
The laboratory technician monitored the colonies developing in the petri dish under a microscope to determine the effectiveness of the new antibiotic treatment.