Meaning of cliff dweller

cliff' dwell"er

Pronunciation: [key]
  1. (usually cap.) a member of a prehistoric people of the southwestern U.S., who were ancestors of the Pueblo Indians and built shelters in caves or on the ledges of cliffs.
  2. a person who lives in an apartment house, esp. in a large city.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.