| 单词 | unit of time |
| 释义 | unit of time (once / 54720 pages) n WORD FAMILY unit of time: units of time USAGE EXAMPLESDividing stories into units of time, into hours and days, is a familiar structuring device, sometimes used for suspense or to create a countdown. New York Times(Dec 27, 2016) It is an estimate in the teacher's head, not an actual unit of time. New York Times(Aug 24, 2016) Dirt and dust and discarded cigarettes mark units of time spent on the road. The New Yorker(Jul 27, 2016) n a unit for measuring time periods Syn|Exp|Hypo|Hyper time unit 6 June 1944 date of the Allied landing in France, World War II 24-hour interval, day, mean solar day, solar day, twenty-four hour period, twenty-four hours time for Earth to make a complete rotation on its axis nightthe dark part of the diurnal cycle considered a time unit mean solar time, mean time(astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator) TDT, TT, ephemeris time, terrestrial dynamical time, terrestrial time(astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions montha time unit of approximately 30 days day, sidereal daythe time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day bell, ship's bell(nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m. 60 minutes, hour, hra period of time equal to 1/24th of a day 30 minutes, half-houra half of an hour 15 minutes, quarter-houra quarter of an hour min, minutea unit of time equal to 60 seconds or 1/60th of an hour quartera unit of time equal to 15 minutes or a quarter of an hour s, sec, second1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites attosecondone quintillionth (10^-18) of a second; one thousandth of a femtosecond femtosecondone quadrillionth (10^-15) of a second; one thousandth of a picosecond picosecondone trillionth (10^-12) of a second; one thousandth of a nanosecond nanosecondone billionth (10^-9) of a second; one thousandth of a microsecond microsecondone millionth (10^-6) of a second; one thousandth of a millisecond millisecond, msecone thousandth (10^-3) of a second tomorrowthe day after today todaythe day that includes the present moment (as opposed to yesterday or tomorrow) yesterdaythe day immediately before today morrowthe next day evethe day before date, day of the monththe specified day of the month datea particular day specified as the time something happens lunar month, lunation, moon, synodic monththe period between successive new moons (29.531 days) anomalistic monthperiod between successive perigees; approximately 27.5546 days sidereal hour1/24 of a sidereal day sidereal monthperiod between successive conjunctions with a star, 27.322 days solar monthone-twelfth of a solar or tropical year man hour, person houra time unit used in industry for measuring work leap seconda second (as measured by an atomic clock) added to or subtracted from Greenwich Mean Time in order to compensate for slowing in the Earth's rotation amount, measure, quantity how much there is or how many there are of something that you can quantify |
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