HETEROATOM
Meaning of HETEROATOM in English
/het'euh roh at"euhm/ , n. Chem.
an atom other than carbon in the ring structure of a heterocyclic compound.
[ 1895-1900; HETERO- + ATOM ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012