the GNU version of the Collaborative International Dictionary of English
adj. Not having a commission.
The Century Dictionary and Cyclopedia
Not having a commission. Abbreviated non-com.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. (of military officers) appointed from enlisted personnel
Word Usage
"If you will pick out those to whom you intend to give commands, and subcommands; I will choose from the men, after drilling them for a few days, forty of the most intelligent as what we call noncommissioned officers."