A neutron that is not in thermal equilibrium with the surrounding medium, especially one produced by fission. Compare slow neutron. See also fast-breeder reactor.
[ged-uh-lahy-uh, gi-dal-yuh] /ˌgɛd əˈlaɪ ə, gɪˈdæl yə/ noun, Judaism. 1. .
noun, Informal. 1. a shrewd action, especially when unscrupulous or dishonest; an unfair trick, deceitful practice, dishonest dealing, etc.: He pulled a fast one on me by paying me with a worthless check. noun phrase A trick or deception; clever subterfuge; dipsy-doodle: That was sure a fast one, you wearing the false mustache Related Terms […]
- Fast packet
Asynchronous Transfer Mode
- Fast reactor
noun 1. a nuclear reactor using little or no moderator, fission being caused by fast neutrons