bathymeter
noun
Meaning
A specialized instrument used for measuring the depth of water bodies, particularly in oceans and lakes.
Examples
- Oceanographers deployed a high-precision bathymeter to chart the unexplored trenches of the Pacific.
- The ship's crew relied on the bathymeter to ensure they were not sailing over shallow, dangerous reefs.
Synonyms: depth gauge, fathometer, sounding line, echosounder