American English

Definition of syncline noun from the Oxford Advanced American Dictionary

 

syncline

 noun
noun
NAmE//ˈsɪnklaɪn//
 
(geology)
 
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an area of ground where layers of rock in the earth's surface have been folded into a curve that is lower in the middle than at the ends compare anticline
See the Oxford Advanced Learner's Dictionary entry: syncline