monkey's puzzle Meaning, Definition & Usage

Mon"key's puz"zle
Definitions
  1. (Bot.) A lofty coniferous Chilian tree (Araucaria imbricata), the branches of which are so crowded and intertwisted "as to puzzle a monkey to climb." The edible nuts are over an inch long, and are called piñon by the Chilians. also, monkey puzzle

Webster 1913