SGa hill with a flat top and steep sides, in the southwestern US 平顶山，方山〔一种平顶峭壁的山，见于美国西南部地区〕
Examples from the Corpus
mesa• They'd lope out to a mesa two miles away and walk back.• There was a mild breeze twisting up the canyons, switching back and forth across the mesa.• Off the mesa, the setting sun was more apparent.• The last hundred feet of elevation form a near-vertical cliff, effectively turning the mesa into an imposing dark fortress.• That was because of this little mountain, this mesa outside Big Spring.