12-Letter Words Starting: THER

• To lower the velocity and kinetic energy of fast neutrons in a nuclear reactor by use of a moderator, and thus increase the efficiency of fission

• diagnostic technique using a thermograph to record the heat produced by different parts of the body; used to study blood flow and to detect tumors

• medical instrument that uses an infrared camera to reveal temperature variations on the surface of the body

• a thermometer that records temperature variations on a graph as a function of time

• the atmospheric layer between the mesosphere and the exosphere

• An organism that lives and thrives at relatively high temperatures; a form of extremophile; many are members of the Archaea.

• a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference

• of or relating to thermometry