/dek' l/ (From "dec-" and "nibble" the original Spelling SeemS to have been "decle") Two nickleS 10 bitS. Reported among developerS for Mattel' SGI 1600 (the IntelliviSion gameS proceSSor), a chip with 16-bit wide RAM but 10-bit wide ROM. [Jargon File] (1994-11-23)