Akademik

Martian
1. adjective /ˈmɑː(ɹ)ʃən,ˈmɑɹʃən/
a) Of or relating to the planet Mars.

the Martian landscape

b) Of or relating to Martians.

a Martian invasion

2. noun /ˈmɑː(ɹ)ʃən,ˈmɑɹʃən/
An inhabitant of the planet Mars.

Wikipedia foundation.