/at'lan tee"euhn, -leuhn-/ , adj.
1. pertaining to the demigod Atlas.
2. having the strength of Atlas: He was of monumental girth and Atlantean power.
3. pertaining to Atlantis.
[ 1660-70; Atlante ( us ) ( Atlánteios of ATLAS, equiv. to Atlant-, s. of Átlas + -eios adj. suffix) + -AN ]