Meanings
nounultrafine particle (plural ultrafine particles)
plural ultrafine particles
- A particle with diameter less than about 100 nanometers (nm).
Synonyms: nanoparticle
Synonyms & antonyms
nounA particle with diameter less than about 100 nanometers (nm).
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Cite this entry
APA
ultrafine particle. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/ultrafine%20particle
MLA
“ultrafine particle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ultrafine%20particle. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “ultrafine particle,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/ultrafine%20particle.
Source: ultrafine particle on Wiktionary, CC BY-SA 4.0.