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- DictionaryUl·tra-fine
adjective
- 1. extremely fine in size, texture, composition, etc.: "the ultra-fine particles emitted by diesel vehicles"
The meaning of ULTRAFINE is fine to an extreme degree. How to use ultrafine in a sentence. fine to an extreme degree: such as; extremely small, thin, or precise; of extremely high quality…
consisting of extremely fine (= small or thin) pieces or drops: People may develop heart disease when they are exposed to ultra-fine particles that are common pollutants in urban air. A grinder is used to crush the mesquite seeds into an ultra-fine powder. very delicate and thin:
ultrafine. adjective. (also ultra-fine) us / ˌʌl.trəˈfaɪn / uk / ˌʌl.trəˈfaɪn /. Add to word list. Add to word list. consisting of extremely fine (= small or thin) pieces or drops: People may develop heart disease when they are exposed to ultra-fine particles that are common pollutants in urban air.
Mar 17, 2020 · Abstract. Ultrafine particles (UFPs) are aerosols with an aerodynamic diameter of 0.1 µm (100 nm) or less. There is a growing concern in the public health community about the...
ultra-fine adjective extremely fine in size, texture, composition, etc.: ultra-fine particles which are invisible to the naked eye the sand is ultra-fine, like dust
Ultrafine particles ( UFPs) are particulate matter of nanoscale size (less than 0.1 μm or 100 nm in diameter). [1] Regulations do not exist for this size class of ambient air pollution particles, which are far smaller than the regulated PM 10 and PM 2.5 particle classes and are believed to have several more aggressive health implications than ...
A complete guide to the word "ULTRAFINE": definitions, pronunciations, synonyms, grammar insights, collocations, examples, and translations.
All you need to know about "ULTRAFINE" in one place: definitions, pronunciations, synonyms, grammar insights, collocations, examples, and translations.
ultrafine in British English. (ˈʌltrəˌfaɪn , ˌʌltrəˈfaɪn ) adjective. 1. extremely small or delicate. 2. (of metals) having an extremely high level of purity. Collins English Dictionary. Copyright © HarperCollins Publishers.
Extrêmement fin, d'une épaisseur ou d'un diamètre nettement inférieur à la normale. Vous allez me passer tout ce merdier au tamis ultra-fin. — (Alain Demouzon, Section rouge de l’espoir, 1979, chapitre 6) Il s’agit d’un sel ultra-fin, obtenu par tamisage du sel fin.
