The phrase "deep crevices" refers to narrow and deep cracks or gaps in something, like rocks or cliffs.
Sentences with «deep crevices»
Like others in the genus, they make funnel webs inside deep crevices of old growth trees. (sciencemag.org)
As I sat next to her yesterday on the aubergine leather sofa, the water of Puget Sound placid outside the window behind her, I studied how the afternoon light fell across her profile and how the shadows formed where age has carved deep crevices in her skin. (outside-oslo.com)
Deep crevices created by skin folds create an ideal environment for growth of bacteria and yeasts. (theveterinaryexpert.com)