from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The univalent organic radical C6H5, derived from benzene by removal of one hydrogen atom.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A univalent hydrocarbon radical (C6H5) formally derived from benzene by the removal of a hydrogen atom, and the basis of an immense number of aromatic derivatives.
from the GNU version of the Collaborative International Dictionary of English
- n. A hydrocarbon radical (C6H5) regarded as the essential residue of benzene, and the basis of an immense number of aromatic derivatives.
from The Century Dictionary and Cyclopedia
- n. An organic radical (C6H5; in the free state, C12H10) found in phenol (or carbolic acid), benzol, and aniline.
From φαίνω, shining. (Wiktionary)