Electricity. (of a circuit or transmission line) unbalanced, as when one part of a circuit is grounded.
British Dictionary definitions for single ended
single-ended
adjective
1.
(electronics) (of an amplifier) having one side of the input and one side of the output connected to earth: used for an unbalanced signal
single ended in Technology
hardware An electrical connection where one wire carries the signal and another wire or shield is connected to electrical ground. This is in contrast to a differential connection where the second wire carries an inverted signal.