From Longman Dictionary of Contemporary Englishdelldell /del/ noun [countable] literary DNALa small valley with grass and trees
Examples from the Corpus
dell• The pilot stationed the Lynx in a controlled hover above a dell a hundred yards away from the target.• He saw it break its flight over a dell between the dunes, soar vertically and then head off at an angle.• The whole area was a maze of dunes and dells.• They disappeared into the neighbouring dell.• The police squad fanned out and with their weapons at the ready advanced towards the target dell.• He scrambled to his feet and charged full tilt down the side of the dell.• Letting it go he focused on the dell.• This explained why the sounds of battle had come from east of this dell.Origin dell Old English 