mid|course

mid|course «MIHD _KRS, -_KOHRS», adjective, noun.

–adj.

for or during the middle part of the course of a spacecraft, aircraft, or ship: »

During the uneventful, 73-hour coast [of Apollo 11 toward the moon], only one of the four planned midcourse corrections was necessary (William J. Cromie).

–n.

the middle part of the trip of a spacecraft, aircraft, or ship: »

The small rocket engine which can manoeuvre the spacecraft slightly in midcourse was needed only to direct Ranger to the sunny rather than the dark side of the moon (London Times).