[bath-uh-thur-muh-graf, -grahf]

noun Oceanography.

an instrument that makes a record of the temperature at various depths in the ocean.

Origin of bathythermograph

First recorded in 1935–40; bathy- + thermograph Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

bathythermograph in Science



A device that records water temperature in relation to ocean depth.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.