The Collaborative International Dictionary
Achronic
Achronic \A*chron"ic\, a. See Acronyc.
Wiktionary
achronic
a. 1 timeless. 2 (context astronomy English) Happening at sunset (of the rise or fall of a star; opposed to (term cosmic English)).
Usage examples of "achronic".
Its achronic fields are able to rotate the world lines of any two objects within a range of several hundred light-years.
Something small enough for a man to carry in one hand, but powerful enough to operate the geofractor from almost any distance, with tubular fields of achronic force.