fission, nuclear fission
(noun) a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
fission
(noun) reproduction of some unicellular organisms by division of the cell into two more or less equal parts
Source: WordNet® 3.1
fission (countable and uncountable, plural fissions)
The process whereby one item splits to become two.
(physics) Short for nuclear fission: The process of splitting the nucleus of an atom into smaller particles.
(biology) The process by which a bacterium splits to form two daughter cells.
fission (third-person singular simple present fissions, present participle fissioning, simple past and past participle fissioned)
(transitive) To cause to undergo fission.
(intransitive) To undergo fission.
Source: Wiktionary
Fis"sion, n. Etym: [L. fissio. See Fissure.]
1. A cleaving, splitting, or breaking up into parts.
2. (Biol.)
Definition: A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage of the into two parts, each of which then becomes a separate and independent organisms; as when a cell in an animal or plant, or its germ, undergoes a spontaneous division, and the parts again subdivide. See Segmentation, and Cell division, under Division.
3. (Zoöl.)
Definition: A process by which certain coral polyps, echinoderms, annelids, etc., spontaneously subdivide, each individual thus forming two or more new ones. See Strobilation.
Source: Webster’s Unabridged Dictionary 1913 Edition
11 May 2025
(noun) a light drumstick with a rounded head that is used to strike such percussion instruments as chimes, kettledrums, marimbas, glockenspiels, etc.
The world’s most expensive coffee costs more than US$700 per kilogram. Asian palm civet – a cat-like creature in Indonesia, eats fruits, including select coffee cherries. It excretes partially digested seeds that produce a smooth, less acidic brew of coffee called kopi luwak.
