noun
: an area in which natural bitumens collect and are exposed at the earth's surface and which tends to trap animals and preserve their hard parts (as bones or teeth)
noun
: an area in which natural bitumens collect and are exposed at the earth's surface and which tends to trap animals and preserve their hard parts (as bones or teeth)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012