astronautical

astronautical or as·tro·nau·tic [as-truh-naw-ti-kuh l, -not-i- or as-truh-naw-tik, -not-ik] Word Origin adjective

1. of or relating to astronautics or astronauts.

Origin of astronautical astronautic (French astronautique, equivalent to astronaute (astro- astro- + -naute Greek naútēs sailor, on the model of aéronaute aeronaut) + -ique -ic) + -al1 Related formsas·tro·nau·ti·cal·ly, adverb