Brompicrin :: Brompicrin (n.) A pungent colorless explosive liquid, CNO2Br3, analogous to and resembling chlorpicrin..
Chlorpicrin :: Chlorpicrin (n.) A heavy, colorless liquid, CCl3.NO2, of a strong pungent odor, obtained by subjecting picric acid to the action of chlorine..
Picric :: Picric (a.) Pertaining to, or designating, a strong organic acid (called picric acid), intensely bitter..
Picrite :: Picrite (n.) A dark green igneous rock, consisting largely of chrysolite, with hornblende, augite, biotite, etc..