|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a stew of meat, vegetables, potatoes, etc.|
petri dish pe·tri dish (pē'trē)
A shallow circular dish with a loose-fitting cover, used to culture bacteria or other microorganisms.
|petri dish (pē'trē) Pronunciation Key
A shallow, circular dish with a loose cover, usually made of transparent glass or plastic and used to grow cultures of microorganisms. The petri dish is named after German bacteriologist Julius Richard Petri (1852-1921).