Definitions

1. noun

A region of the ocean or sea where the sea floor drops steeply away from the coastal land.

“The biotome near the coral reef was teeming with marine life.”

2. noun

A region of the Earth’s crust where the rock is being uplifted or eroded, particularly a region of a mountain range where the rock is being uplifted to form a mountain peak.

“The biotome was a critical area of geological study due to its unique combination of tectonic uplift and erosion.”