Pronunciation: (non-yOOn'yun), [key]
1. not belonging to a labor union: nonunion workers.
2. not recognizing or accepting a labor union or union policy: a nonunion factory.
3. not manufactured by labor union workers.
Med.failure of a broken bone to heal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.