Definition of Marsian in US English:

Marsian

noun

  • The language of the Marsi, one of the Oscan-Umbrian subgroup of the Italic group of Indo-European languages.

adjective

  • Of or relating to the Marsi or their language.

Origin

Late 16th century (in an earlier sense). From Marsi + -an.

Pronunciation

Marsian

/ˈmɑːsɪən/