(
DoD,
NATO) The space between adjacent aircraft measured from front to rear in units of time or distance.
(
DoD,
NATO) The time lapse between photographic exposures.
(
DoD,
NATO) At battery right or left, an interval ordered in seconds is the time between one gun firing and the next gun firing. Five seconds is the standard interval.
(
DoD,
NATO) The space between adjacent individuals, ground vehicles, or units in a formation that are placed side by side, measured abreast.
(
DoD,
NATO) The space between adjacent groups of ships or boats measured in any direction between the corresponding ships or boats in each group.
(
DoD,
NATO) At rounds of fire for effect the interval is the time in seconds between successive rounds from each gun.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.