particle
The Spanish word 'partícula' translates to 'particle' in English. In both languages, this word is used predominantly in the fields of physics and chemistry, and it refers to a minute portion of matter. This could be an atom, a molecule, or any other component that together with similar components, constitutes an object or substance. For instance, dust particles or particles of light (photons). 'Partícula' can also be often found in the field of linguistics where it refers to grammatical particles.
The smallest particle of an element is an atom.
This sentence is explaining a basic principle of physics, indicating that the smallest component of any elementary substance is referred to as an atom.
A dust particle got into my eye.
The speaker is describing a common experience where a small particle, specifically of dust, has somehow gotten into their eye, causing discomfort.
Every particle of this universe is important.
This philosophical sentence signifies the speaker's belief that each single entity or part of the universe, no matter how small, carries significance and value.