Synonyms of the word

nonpolar

• adj. (physics) Not containing a dipole.
• adj. (chemistry) Not ionic; not dissociating into ions when dissolved in water etc.

nonionic

• adj. Not ionic; anionic.

particle

• n. A very small piece of matter, a fragment; especially, the smallest possible part of something.
• n. (linguistics, sensu lato) A part of speech which cannot be inflected: an adverb, preposition, conjunction…
• n. (linguistics, sensu stricto) A word that has a particular grammatical function but does not obviously…
• n. (physics) Any of various physical objects making up the constituent parts of an atom; an elementary particle…