delayed neutron
Word Rarity
Rare
Frequency: Zipf frequency 3.37 in modern English
19
Scrabble Score
14
Letters
3
Syllables
10
Unique Chars
Meaning
noun
A neutron produced by nuclear fission which is emitted upon the radioactive decay of a fission product nucleus sometime later, rather than at the time of the fission itself. Less than 2% of fission neutrons are delayed neutrons (the exact proportion depends on the nuclide being fissioned).