Definition of superterranean in US English:

superterranean

adjective

  • That is, lives, or takes place above or on the surface of the earth; of or relating to the region above ground. Chiefly in contrast with subterranean.

noun

  • 1A being or creature that dwells above ground or on the surface of the earth.

  • 2With the. That which is above ground; the superterranean world or sphere.

Origin

Late 17th century; earliest use found in George Wharton (1617–1681), astrologer and royalist. From post-classical Latin superterraneus + -an, probably after subterranean. Compare earlier superterraneous and superterraneal.