Source: http://www.ldonline.org/ld_indepth/glossaries/ld_glossary.html
| ABA | Applied Behavioral Analysis |
| ADA | Americans with Disabilities Act |
| ADD | Attention Deficit Disorder |
| ADHD | Attention Deficit Hyperactivity Disorder |
| AHA | American Hyperlexia Association |
| AIT | Auditory Integration Training |
| ARI | Autism Research Institute |
| AS | Aspergers Syndrome |
| ASA | Autism Society of America |
| ASD | Autistic Spectrum Disorder |
| BBCS | Bracken Basic Concept Scale |
| BGC | Another kind of auditory training (initials of its creators) |
| CAN | Cure Autism Now (merged with Autism Speaks) |
| CHA | Canadian Hyperlexia Association |
| CST | Child Study Team |
| CT / CAT | Computerized (Axial) Tomography Scan |
| DAN | Defeat Autism Now |
| DD | Developmentally Disabled |
| DMG | Dimethylglycine |
| DTT | Discrete Trial Training |
| EEG | Electroencephalogram |
| EMR | Educable Mentally Retarded |
| EOWPVT | Expressive One Word Picture Vocabulary Test |
| ETS | Education Testing Service |
| GCD | Globlal Communication Disorder |
| GSN | Gifted with Special Needs |
| HAILO | Computer software to facilitate language learning (also FastForword) |
| HANDLE | Holistic Approach to Neurodevelopmental Learning Experiences |
| HFA | High Functioning Autism |
| KTEA | Kaufman Test of Individual Achievement |
| IDEA | Individuals with Disabilities Education Act |
| IEP | Individualized Education Program |
| IFSP | Individualized Family Services Plan |
| LD | Learning Disabled/Disability/Disordered; also Language Disordered |
| LDA | Learning Disabilities Association |
| LFA | Low Functioning Autistic |
| LLD | Language Learning Disorder |
| MAAP | More Abled Autistic Persons |
| MMR | Midly Mentally Retarded |
| NCC | Non-Categorical Categorical |
| NOS | Not Otherwise Specified |
| NT | Neurologically Typical |
| NU | Neurologically Unique |
| OCD | Obsessive Compulsive Disorder |
| OT | Occupational Therapy/Therapist |
| PDD | Pervasive Developmental Disorder |
| PT | Physical Therapy/Therapist |
| SELD | Severe Expressive Language Delay |
| SNG | Special Needs Gifted |
| SPD | Semantic Pragmatic Disorder |
| TAG | Talented and Gifted |
| TAPS | Test of Auditory Perceptual Skills |
| TOLD | Test of Language Development |
| TOWL | Test of Written Language |