Wiktionary
n. (context astronomy English) A unit of distance equal to a million parsecs
Usage examples of "megaparsec".
And, especially, damn anything that put her within a megaparsec of her ungrateful, telepathic, and all-too-Deltan daughter!
It is some three hundred million light-years across, encompassing a volume of approximately one hundred million cubic megaparsecs, and appears to be moving in the general direction of our galaxy.
Whether they were eaten by Priestess Poogli and her apostolic sisters or eaten up by the great uncharted maw of deep space so many megaparsecs from anything terran or humanwhat difference?
I must remind myself to trap me another of his ilk when I am in his old neighborhood, some megaparsecs south of Orion.
Something horrific that howled and writhed and roared through empty space within an area that was three hundred million light-years across and one hundred million megaparsecs in volume.