Search Result for "thermal reactor":
Wordnet 3.0

NOUN (1)

1. a nuclear reactor in which nuclear fissions are caused by neutrons that are slowed down by a moderator; 



WordNet (r) 3.0 (2006):

thermal reactor
    n 1: a nuclear reactor in which nuclear fissions are caused by
         neutrons that are slowed down by a moderator [ant: fast
         reactor]