[meyn-streem] 
| 1. | the principal or dominant course, tendency, or trend: the mainstream of American culture. |
| 2. | a river having tributaries. |
| 3. | belonging to or characteristic of a principal, dominant, or widely accepted group, movement, style, etc.: mainstream Republicans; a mainstream artist. |
| 4. | of, pertaining to, or characteristic of jazz falling historically between Dixieland and modern jazz; specifically, swing music. Compare traditional (def. 4). |
| 5. | to send into the mainstream; cause to join the main force, group, etc.: to mainstream young people into the labor force. |
| 6. | to place (handicapped students) in regular school classes. |
| 7. | to join or be placed in the mainstream. |
