extrasolar

As adjectives the difference between extrasolar and exosolar

is that extrasolar is of or originating outside the Solar System while exosolar is outside Earth's solar system.

As adjectives the difference between extrapolar and extrasolar

is that extrapolar is from outside of a polar region while extrasolar is (astronomy) of or originating outside the solar system.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective extrasolar is

(astronomy) of or originating outside the solar system.

In astronomy terms the difference between extrasolar and exozodiacal

is that extrasolar is of or originating outside the Solar System while exozodiacal is pertaining to the extrasolar ecliptic plane of star systems beyond the Solar System.