(Derived from its causing a nodding of the head) A bump or depression in a road; especially a ridge or hollow made across a road on a hillside to cause water to run off and thereby minimize erosion. Also known as a Water Break.
THANK-YOU-MA'AM
Meaning of THANK-YOU-MA'AM in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012