the practice of diving in underwater caverns, which requires special equipment and techniques and involves exploration of permanent, naturally occurring overhead environments while remaining within sight of their entrances
Cavern divers generally go no further than 130 feet from the surface.
a cave, especially one that is large and mostly underground. Pathology. a cavity that is produced by disease, especially one produced in the lungs by tuberculosis. to enclose in or as if in a cavern. to hollow out to form a cavern. Contemporary Examples Historical Examples noun a cave, esp when large and formed by […]
caverna ca·ver·na (kə-vûr’nə, kā-) n. pl. ca·ver·nae (-nē’) An anatomical cavity or hollow space.
living in caverns or caves, as certain animals. Historical Examples
caverniloquy cav·er·nil·o·quy (kāv’ər-nĭl’ə-kwē) n. A low-pitched, resonant pectoriloquy detected over a lung cavity.