extragalactic |
transgalactic |
As adjectives the difference between extragalactic and transgalactic
is that
extragalactic is (astronomy) originating outside of the milky way galaxy while
transgalactic is between or beyond the boundaries of galaxies.
extragalactic |
kilomaser |
In astronomy terms the difference between extragalactic and kilomaser
is that
extragalactic is originating outside of a galaxy while
kilomaser is an extragalactic water maser that is weaker than a megamaser.
As an adjective extragalactic
is originating outside of the Milky Way galaxy.
As a noun kilomaser is
an extragalactic water maser that is weaker than a megamaser.