heatspot

plural heatspots

1. A spot that is hotter than the surrounding area.

   Just then another sensor pinged; a heatspot on the exterior hull, not far from the stasis switch. Not very hot, only enough to vaporize iron, but it might be a guide beam for some weapon that would penetrate shipmetal.

   1990, Larry Niven, Man-Kzin Wars III

   1 more example

   As pointed out by Faubel and Ali (1986), the use of undiluted APM in a column mode is difficult because of the microcrystalline structure of the material and because of the potential need to provide a cooling system to prevent heatspots from the radiolytic heat generation.

   2012, E. P. Horwitz, W. W. Schulz, Chemical Pretreatment of Nuclear Waste for Disposal, page 187