swallow hole

کلمات مرتبط(swallow hole):بازگشت به واژه swallow holehole
swallow

معمارى : سنگ چالکلمات مرتبط(2)

swallow hole

Từ điển WordNet

    n.

  • a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof; sinkhole, sink