Chem.
any of three bivalent, isomeric groups having the formula -C 6 H 4 -, derived from benzene by the removal of two hydrogen atoms. Also called phenylene radical .
Chem.
any of three bivalent, isomeric groups having the formula -C 6 H 4 -, derived from benzene by the removal of two hydrogen atoms. Also called phenylene radical .
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012