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A shallow flat dish with an overlapping lid.
Also known as: Culture dish, Petri plate
A Petri dish is drawn as a shallow circular dish with a slightly larger lid resting over it, used for growing cultures on a solid medium.
Holds a solid growth medium for culturing organisms.
Contexts: Laboratory
Has an overlapping rather than a sealing lid, which admits air while excluding falling contamination — the design's whole purpose.
Contexts: Laboratory
A shallow flat circular dish with a second slightly wider shallow dish drawn inverted over it as a lid.