【化】 苦味酸
【医】 苦味酸, 三硝基酚

[ noun ]
a yellow toxic highly explosive strong acid; used in high explosives and as a dye and in chemical reactions
<noun.substance>

Nitrophnol \Ni`tro*ph"nol\, n. [Nitro- + phenol.] (Chem.)
Any one of a series of nitro derivatives of phenol. They are
yellow oily or crystalline substances and have well-defined
acid properties, as {picric acid}.