a. [ L. Atlant&unr_;us. ] 1. Of or pertaining to the isle Atlantis, which the ancients allege was sunk, and overwhelmed by the ocean. [ 1913 Webster ]

2. Pertaining to, or resembling, Atlas; strong. [ 1913 Webster ]

With Atlantean shoulders, fit to bear
The weight of mightiest monarchies. Milton. [ 1913 Webster ]