UNIT OF TIME

Pronunciation (US):

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IPA (US):

 Dictionary entry overview: What does unit of time mean? 

• UNIT OF TIME (noun)
  The noun UNIT OF TIME has 1 sense:

1. a unit for measuring time periods

  Familiarity information: UNIT OF TIME used as a noun is very rare.

 Dictionary entry details 

• UNIT OF TIME (noun)

Sense 1

Meaning:

A unit for measuring time periods

Classified under:

Nouns denoting time and temporal relations

Synonyms:

time unit; unit of time

Hypernyms ("unit of time" is a kind of...):

amount; measure; quantity (how much there is or how many there are of something that you can quantify)

Hyponyms (each of the following is a kind of "unit of time"):

15 minutes; quarter-hour (a quarter of an hour)

millisecond; msec (one thousandth (10^-3) of a second)

microsecond (one millionth (10^-6) of a second; one thousandth of a millisecond)

nanosecond (one billionth (10^-9) of a second; one thousandth of a microsecond)

picosecond (one trillionth (10^-12) of a second; one thousandth of a nanosecond)

femtosecond (one quadrillionth (10^-15) of a second; one thousandth of a picosecond)

attosecond (one quintillionth (10^-18) of a second; one thousandth of a femtosecond)

s; sec; second (1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites)

quarter (a unit of time equal to 15 minutes or a quarter of an hour)

min; minute (a unit of time equal to 60 seconds or 1/60th of an hour)

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)

30 minutes; half-hour (a half of an hour)

60 minutes; hour; hr (a period of time equal to 1/24th of a 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.)

day; sidereal day (the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day)

month (a time unit of approximately 30 days)

ephemeris time; TDT; terrestrial dynamical time; terrestrial time; TT ((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)

mean solar time; mean time ((astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator))

night (the dark part of the diurnal cycle considered a time unit)

 Context examples 

A measurement of the volume of serum or plasma that would be cleared of Iohexol through excretion for a specified unit of time.

(Iohexol Clearance, NCI Thesaurus)

The number of heartbeats per unit of time, usually expressed as beats per minute.

(Heart rate, NCI Thesaurus)

A measurement of the volume of serum or plasma that would be cleared of glucose by excretion of urine for a specified unit of time (e.g. one minute).

(Glucose Clearance Measurement, NCI Thesaurus/CDISC)

A unit of measure equal to the number of visual frames per unit of time equal to one second.

(Frames Per Second, NCI Thesaurus)

A unit of resistance equal to the number of kilopascals per unit of volume equal to one liter per unit of time equal to one second.

(Kilopascal Per Liter Per Second, NCI Thesaurus)

A unit of measure equal to the number of milliliters per unit of time equal to one minute per unit of pressure equal to one milliter of mercury (mmHg).

(Milliliter per Minute per Millimeters of Mercury, NCI Thesaurus/CDISC)

A measurement of the volume of serum or plasma that would be cleared of phosphate by excretion of urine for a specified unit of time (e.g. one minute).

(Phosphate Clearance Measurement, NCI Thesaurus/CDISC)

The anticipated length of a nonclinical study measured as a unit of time.

(Nonclinical Study Length, NCI Thesaurus)

A unit of time equal to one thousandth of a second (10E-3 second).

(Millisecond, NCI Thesaurus)

A unit denoting a number of events equal to 5 or quantity equal to 5 expressed in any units per unit of time equal to one second.

(Five per Second, NCI Thesaurus)