Meaning of ultima Thule

ul•ti•ma Thu•le

Pronunciation: (ul'tu-mu th'lē Lat. &oobrevel'ti-mä&sec t'le), [key]
  1. (italics)the highest degree attainable.
  2. the farthest point; the limit of any journey.
  3. the point believed by the ancients to be farthest north. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.