reactor

noun5

1. •
   A structure used to contain chemical or other reactions.
2. •
   A device which uses atomic energy to produce heat.

   • It limits the rights of nonweapon countries to develop an export business in civilian reactor technology. — 1972
3. •
   A person who responds to a suggestion, stimulation or other influence.

   • Altman seees his characters as total reactors; everything they do and say is in response to their environment. They do not seem to exist with lives or qualities of their own. — 1983
4. •
   A chemical substance which responds to the presence of, or contact with, another substance.
5. •
   An electrical component with reactance