noun in·ter·val \ˈin-tər-vəl\

: a period of time between events

music : the difference in pitch between two notes

Full Definition of INTERVAL

a :  a space of time between events or states
b British :  intermission
a :  a space between objects, units, points, or states
b :  difference in pitch between tones
:  a set of real numbers between two numbers either including or excluding one or both of them
:  one of a series of fast-paced exercises interspersed with slower ones or brief rests for training (as of an athlete)
in·ter·val·lic \ˌin-tər-ˈva-lik\ adjective

Examples of INTERVAL

  1. a three-month interval between jobs
  2. There might be long intervals during which nothing happens.
  3. The sun shone for brief intervals throughout the day.
  4. There will be a 20-minute interval between acts one and two.

Origin of INTERVAL

Middle English intervalle, from Anglo-French & Latin; Anglo-French entreval, from Latin intervallum space between ramparts, interval, from inter- + vallum rampart — more at wall
First Known Use: 14th century
INTERVALLIC Defined for Kids


noun in·ter·val \ˈin-tər-vəl\

Definition of INTERVAL for Kids

:  a period of time between events or states <There was a short interval between shows.>
:  a space between things <Signs were posted at regular intervals.>
:  the difference in pitch between two tones
Medical Dictionary


noun in·ter·val \ˈint-ər-vəl\

Medical Definition of INTERVAL

:  a space of time between events or states <intervals between pregnancies>


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