cationic hetero atom

cationic hetero atom

[‚kad·ē′än·ik ′hed·ə·rō ′ad·əm]
(chemistry)
A positively charged atom, other than carbon, in an otherwise carbon atomic chain or ring.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.