the GNU version of the Collaborative International Dictionary of English
n. The state of being concentric.
The Century Dictionary and Cyclopedia
n. The state of being concentric.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of having the same center (as circles inside one another)
Word Usage
"Barnes all copper bullets are very accurate because there are no issues with concentricity and perfect thickness associated with jacketed bullets that can make them less than true flying."