Definition of FISSION

fission

Plural: fissions

Noun

  • reproduction of some unicellular organisms by division of the cell into two more or less equal parts
  • a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
  • The process whereby one item splits to become two.
  • nuclear fission: The process of splitting the nucleus of an atom into smaller particles.
  • The process by which a bacterium splits to form two daughter cells.

Verb

Verb Forms: fissioned, fissioning, fissions

  • To split apart or divide, especially a cell or atom.
  • To cause to undergo fission.
  • To undergo fission.

Examples

  • The clever player managed to FISSION his difficult rack into two high-scoring words.

Origin / Etymology

Borrowed from Latin fissiōnem, accusative singular of fissiō (“the act of breaking up”), from findō (“split, divide”).

Synonyms

nuclear fission, fissiparism

Scrabble Score: 10

fission: valid Scrabble (US) TWL Word
fission: valid Scrabble Word in Merriam-Webster MW Dictionary
fission: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 11

fission: valid Words With Friends Word