noun Physics.
- a device consisting of a number of thermocouples joined in series, used for generating thermoelectric current or for detecting and measuring radiant energy, as from a star.
noun
- an instrument for detecting and measuring heat radiation or for generating a thermoelectric current. It consists of a number of thermocouple junctions, usually joined together in series
- A device consisting of a number of thermocouples connected in series or parallel, used for measuring temperature or generating current.