[{"word":"nanoparticles","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Any microscopic particle less than about 100 nanometers (nm) in diameter. In aerosol science, the term is often reserved for particles less than 50 nm in diameter; the term \"ultrafine particles\" is used for particles less than 100 nm in diameter.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/nanoparticle","https://en.wiktionary.org/wiki/nanoparticles"]}]