time unit
English Thesaurus
1. a unit for measuring time periods (noun.time)
| hypernym | : | amount, measure, quantity, |
| definition | : | how much there is or how many there are of something that you can quantify (noun.tops) |
| hyponym | : | night, |
| definition | : | the dark part of the diurnal cycle considered a time unit (noun.time) |
| hyponym | : | mean solar time, mean time, |
| definition | : | (astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator) (noun.time) |
| hyponym | : | month, |
| definition | : | a time unit of approximately 30 days (noun.time) |
| hyponym | : | day, sidereal day, |
| definition | : | the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day (noun.time) |
| hyponym | : | bell, ship's bell, |
| definition | : | (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. (noun.time) |
| hyponym | : | 60 minutes, hour, hr, |
| definition | : | a period of time equal to 1/24th of a day (noun.time) |
| hyponym | : | min, minute, |
| definition | : | a unit of time equal to 60 seconds or 1/60th of an hour (noun.time) |
| hyponym | : | quarter, |
| definition | : | a unit of time equal to 15 minutes or a quarter of an hour (noun.time) |
| hyponym | : | s, sec, second, |
| definition | : | 1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites (noun.time) |
| hyponym | : | attosecond, |
| definition | : | one quintillionth (10^-18) of a second; one thousandth of a femtosecond (noun.time) |
| hyponym | : | femtosecond, |
| definition | : | one quadrillionth (10^-15) of a second; one thousandth of a picosecond (noun.time) |
| hyponym | : | picosecond, |
| definition | : | one trillionth (10^-12) of a second; one thousandth of a nanosecond (noun.time) |
| hyponym | : | nanosecond, |
| definition | : | one billionth (10^-9) of a second; one thousandth of a microsecond (noun.time) |
| hyponym | : | microsecond, |
| definition | : | one millionth (10^-6) of a second; one thousandth of a millisecond (noun.time) |
| hyponym | : | millisecond, msec, |
| definition | : | one thousandth (10^-3) of a second (noun.time) |
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