120th adj : the ordinal number of one hundred twenty in counting order [syn: {hundred-and-twentieth}]
120 reset/wuhn-twen'tee ree'set/ (After 120 volts, US mains voltage) To cycle power on a computer in order to reset or unjam it. Compare {Big Red Switch}, {power cycle}. [{Jargon File}] (1994-11-23)