Lexicon of Cave and Karst Terminology

NATURAL ARCH

natural arch: translation

1.A residual portion of the roof of a subsurface karst cavity which has not collapsed. Such a natural arch may occur as a surface topographic feature, or as a part of a cave system [20].
2.A rock arch or very short natural tunnel; contrasted with natural bridge, which spans a ravine or valley [10].
Synonyms:(French.)archenaturelle; (German.)natürlischesGewölbe,Naturbrücke,Felsfenster,Felsbrücke; (Greek.)physikeapsitha; (Italian.)arconaturale; (Russian.)estestvennijarka; (Spanish.)arconatural; (Turkish.)do™alkemer; (Yugoslavian.)prirodnisvod,luk,naravniobok.
See alsonatural bridge.

  1. natural arch—свод естественного равновесия...Англо-русский научно-технический словарь
  2. natural arch—свод естественного равновесияАнглорусский строительный словарь...Англо-русский словарь строительных терминов