midcourse

[mid-kawrs, -kohrs]

the middle of a course.

Rocketry. the portion of a ballistic trajectory between the end of powered flight and the beginning of the reentry phase.

Aerospace. the portion of a space trajectory between leaving the earth's vicinity and arrival at the desired destination, as another planet.

Origin of midcourse

First recorded in 1555–65; mid- + course

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

"I don't—I don't understand you," panted Lydia, confusedly arresting her bolts in mid-course.
The Lady of the Aroostook
William Dean Howells
The interior table-land, especially towards the mid-course of the Zambesi, is intersected by lofty mountain-chains.
The Desert World
Arthur Mangin
The "Dialogues of the Damned" are an incomplete series, arrested in mid-course at No.
Sonia Between two Worlds
Stephen McKenna
And no bird spreading its light wings can cross that water; but in mid-course it plunges into the flame, fluttering.
The Argonautica
Apollonius Rhodius
None, no none, could get anywhere near it; even Martin was left many yards behind in mid-course.
A Hungarian Nabob
Maurus Jkai