[pahr-ti-kuh l] /ˈpɑr tɪ kəl/
a minute portion, piece, fragment, or amount; a tiny or very small bit:
a particle of dust; not a particle of supporting evidence.
a clause or article, as of a document.
Roman Catholic Church. a small piece of the Host given to each lay communicant in a Eucharistic service.
an extremely small piece of matter; speck
a very tiny amount; iota: it doesn’t make a particle of difference
a function word, esp (in certain languages) a word belonging to an uninflected class having suprasegmental or grammatical function: the Greek particles “mēn” and “de” are used to express contrast, questions in Japanese are indicated by the particle “ka”, English “up” is sometimes regarded as an adverbial particle
a common affix, such as re-, un-, or -ness
(physics) a body with finite mass that can be treated as having negligible size, and internal structure
See elementary particle
(RC Church) a small piece broken off from the Host at Mass
(archaic) a section or clause of a document
late 14c., “small part or division of a whole, minute portion of matter,” from Latin particula “little bit or part, grain, jot,” diminutive of pars (genitive partis) “part;” see part (n.). Particle physics attested from 1969. In construction, particle board (1957) is so called because it is made from chips and shavings of wood.
particle par·ti·cle (pär’tĭ-kəl)
noun 1. (def 7). noun 1. a machine for accelerating charged elementary particles to very high energies, used for research in nuclear physics See also linear accelerator, cyclotron, betatron, synchrotron, synchrocyclotron particle accelerator Any of several machines, such as the cyclotron and linear accelerator, that increase the speed and energy of protons, electrons, or other […]
- Particle beam weapon
noun 1. a weapon that fires particle beams into the atmosphere or space
noun 1. any of various composition boards formed from small particles of wood, as flakes or shavings, tightly compressed and bonded together with a resin. noun 1. another name for chipboard
noun 1. the branch of physics that deals with the properties and behavior of elementary particles. noun 1. the study of fundamental particles and their properties Also called high-energy physics particle physics The branch of physics that deals with subatomic particles. See also quantum field theory, quantum mechanics. The branch of science devoted to the […]