MBD uncommon noun 1. a condition (mostly in boys) characterized by behavioral and learning disorders Synonymsattention deficit disorderADDattention deficit hyperactivity disorderADHDhyperkinetic syndromeminimal brain dysfunctionminimal brain damage Related words Broader terms syndrome Part of hyperactivity WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
