[reel-tuh-reel] 
| of or pertaining to an audio sound-equipment system or motion-picture camera or projector through which the tape or film must be threaded onto a take-up reel. |
| reel-to-reel (rēl'tə-rēl') adj. Designating sound recording equipment or sound recordings that use magnetic tape which must be threaded through the equipment and onto an empty reel. |