intellectual disability A broad category of disorders characterized by an impairment to the intelligence an individual possesses. These impairments can result from trauma, birth, or disease and are not restricted to any particular age group. DOID:1059 EFO:0003847 GARD:0011963 ICD10:F70.F79 ICD9:319 MESH:D008607 MONDO:0001071 NCIT:C97250 SCTID:91138005 intellectual disabilities mental retardation developmental disorder of mental health