পিক্পিগমি
পিক্ৰিক এছিড (Assamese)
1. Picric acid is an organic compound with the formula (O2N)3C6H2OH. Its IUPAC name is 2,4,6-trinitrophenol (TNP). The name "picric" comes from Greek: πικρός (pikros), meaning "bitter", due to its bitter... from wikipedia.org