Relating to or inhabiting deep valleys, gorges, or basins, especially underwater geological formations.
From Greek 'bathos' (depth) + 'kolpos' (bosom, valley, gulf). This rare geological term emerged in 19th-century marine survey literature.
Bathycolpian describes the deepest submarine valleys that slice through the ocean floor like underwater Grand Canyons—some are deeper and more dramatic than any canyon on land!
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