You searched for: “bathythermographs”
bathythermograph (s) (noun), bathythermographs (pl)
An instrument that automatically records the temperature of water at various depths.
This entry is located in the following units: grapho-, graph-, -graph, -graphy, -grapher, -graphia (page 9) thermo-, therm-, thermi-, -thermia, -therm, -thermal, -thermic, -thermias, -thermies, -thermous, -thermy (page 3)