(physical chemistry) Also known as covalent radius. Half the distance between the nuclei of two like atoms that are covalently bonded. The experimentally determined radius of an atom in a covalently bonded compound. Also known as covalent radius.

McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.