noun
: an S-shaped curve (as in a railway line or a highway) made by joining two simple curves turning in opposite directions ; broadly : a stretch formed of two oppositely turning simple curves joined by a tangent
noun
: an S-shaped curve (as in a railway line or a highway) made by joining two simple curves turning in opposite directions ; broadly : a stretch formed of two oppositely turning simple curves joined by a tangent
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012