You searched for: “particle
Word Entries at Get Words: “particle
particle
Any very small piece of matter; such as, a molecule or atom.

It also refers to pieces even smaller; such as, electrons, protons, and neutrons. Another application is to larger ones, as in interstellar dust.

This entry is located in the following unit: Astronomy and related astronomical terms (page 18)
Word Entries at Get Words containing the term: “particle
subatomic particle
An electron, proton, or neutron; one of the three major particles of which atoms are composed.
This entry is located in the following unit: Biology Terms + (page 3)