expendable bathy-thermograph
an instrument that records water temperature with depth. Abbreviated as XBT

Dictionary of ichthyology. 2009.

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  • XBT — abbreviation for an expendable bathy thermograph, an instrument that records water temperature with depth …   Dictionary of ichthyology

  • bathythermograph — /bath euh therr meuh graf , grahf /, n. Oceanog. an instrument that makes a record of the temperature at various depths in the ocean. [1935 40; BATHY + THERMOGRAPH] * * * ▪ instrument       any of various oceanographic devices containing… …   Universalium

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