The Collaborative International Dictionary of English v.0.48:
Aeronautic \A`["e]r*o*naut"ic\, Aeronautical \A`["e]r*o*naut"ic*al\, a. [Cf. F. a['e]ronauitique.] Pertaining to a["e]ronautics, or a["e]rial sailing. [1913 Webster]WordNet (r) 3.0 (2006):
aeronautical adj 1: of or pertaining to aeronautics [syn: aeronautical, aeronautic]