|a fool or simpleton; ninny.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
the simplest aromatic nitro compound, having the molecular formula C6H5NO2. It is used in the manufacture of aniline, benzidine, and other organic chemicals. Nitrobenzene is a colourless to pale yellow, oily, highly toxic liquid with the odour of bitter almonds.
Learn more about nitrobenzene with a free trial on Britannica.com.