nickle: /ni'kl/ n. [from `nickel', common name for the U.S.
5-cent coin] A nybble + 1; 5 bits. Reported among developers for
Mattel's GI 1600 (the Intellivision games processor), a chip with
16-bit-wide RAM but 10-bit-wide ROM. See also deckle, and
nybble for names of other bit units.