Designating a type of binary signal which does not return to 0 following each bit (as opposed to a return-to-zero signal); relating to or involving such a signal.
Origin
1950s.
Definition of non-return-to-zero in US English:
non-return-to-zero
adjective
Electronics
Designating a type of binary signal which does not return to 0 following each bit (as opposed to a return-to-zero signal); relating to or involving such a signal.