Definitions for "Thermal reactor"
A reactor in which neutrons are slowed to ‘thermal’ speeds by use of a moderator.
A reactor that uses thermal (or slow) neutrons to sustain the chain reaction.
Nuclear fission reactor which uses moderated (slow or "thermal") neutrons; e.g. Magnox, light water or Candu reactors. Reactors without a moderator are referred to as fast reactors.
A high-volume thermally isolated chamber replacing the exhaust manifold and providing a place for high-temperature after burning of exhaust pollutants.