Particle

[pahr-ti-kuh l] /ˈpɑr tɪ kəl/

noun
1.
a minute portion, piece, fragment, or amount; a tiny or very small bit:
a particle of dust; not a particle of supporting evidence.
2.
Physics.

3.
a clause or article, as of a document.
4.
Grammar.

5.
Roman Catholic Church. a small piece of the Host given to each lay communicant in a Eucharistic service.
/ˈpɑːtɪkəl/
noun
1.
an extremely small piece of matter; speck
2.
a very tiny amount; iota: it doesn’t make a particle of difference
3.
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
4.
a common affix, such as re-, un-, or -ness
5.
(physics) a body with finite mass that can be treated as having negligible size, and internal structure
6.
See elementary particle
7.
(RC Church) a small piece broken off from the Host at Mass
8.
(archaic) a section or clause of a document
n.

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)
n.

particle
(pär’tĭ-kəl)