natural_enclosure
1. [ noun ] a naturally enclosed space
Synonyms: enclosure
Related terms: object entity cave cavern matrix enclose
Similar spelling:   natural_science
  natural_resource
  natural_spring
  natural_resources
  natural_endowment
  natural_selection
  natural_logarithm
  natural_elevation
  naturalisation
  natural_virtue
  natural_philosophy
  natural_phenomenon
  natural_action
  natural_process
  natural_number
  natural_history