noun🔗ShareUna cresta larga, estrecha y sinuosa creada por los depósitos de una corriente que corre debajo de un glaciarA long, narrow, sinuous ridge created by deposits from a stream running beneath a glacier."The hikers followed the winding esker, a long ridge of gravel left behind by a glacier. "Los excursionistas siguieron la sinuosa esker, una larga cresta de grava dejada por un glaciar.geologygeographyenvironmentnaturescienceChat with AIVocabulary GamePractice Reading