trigonal planar molecule

trigonal planar molecule

[trī¦gōn·əl ¦plā‚när ′mäl·ə‚kyül]
(chemistry)
A molecule having a central atom that is bonded to three other atoms, with all four atoms lying in the same plane.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.