oceanic trench
noun1
Geography, Geology, Natural sciences, Oceanography A hemispheric-scale long but narrow topographic depression of the seabed.
noun
Geography, Geology, Natural sciences, Oceanography A hemispheric-scale long but narrow topographic depression of the seabed.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
Do you accept non-essential analytics cookies?