hydroxyl
- n the monovalent group -OH in such compounds as bases and some acids and alcohols
- It is from the signals of the hydroxyl molecule (which consists of one atom of hydrogen and one of oxygen) that radio astronomers have been learning about star formation and the .
- In 1963 a team of researchers from the Massachusetts Institute of Technology and the Lincoln Laboratory used a radio telescope to discover the hydroxyl radical (two-thirds of the .