bathometer
/bæθˈɒmɪtər/Definitions
1. noun
An instrument used for measuring the temperature or other properties of the surface of the ocean, typically from a ship.
“The crew used a bathometer to collect data on the ocean’s temperature and salinity levels.”
2. noun
A device for measuring the depth of water, especially in the ocean.
“The researchers employed a bathometer to measure the water depth and ensure the safety of their vessel.”