from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of three isomeric univalent radicals, C5H4N-, derived from pyridine; analogous to phenyl.
from the GNU version of the Collaborative International Dictionary of English
- n. A hypothetical radical, C5H4N, regarded as the essential residue of pyridine, and analogous to phenyl.
from The Century Dictionary and Cyclopedia
- n. The radical C5H4N, which is derived from pyridine.
Sorry, no etymologies found.