Search results
- Dictionaryultra-fine
adjective
- 1. extremely fine in size, texture, composition, etc.: "ultra-fine particles which are invisible to the naked eye"
Powered by Oxford Dictionaries
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 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 ...
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:
Definition of 'ultrafine' Word Frequency. 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. Examples of 'ultrafine' in a sentence. ultrafine.
Define ultrafine. ultrafine synonyms, ultrafine pronunciation, ultrafine translation, English dictionary definition of ultrafine. adj 1. extremely small or delicate 2. having an extremely high level of purity Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 ©...
Definitions of 'ultrafine' 1. extremely small or delicate. [...] 2. (of metals) having an extremely high level of purity. [...] More. Examples of 'ultrafine' in a sentence. These examples have been automatically selected and may contain sensitive content that does not reflect the opinions or policies of Collins. Read more.
Oct 28, 2023 · ultra-+ fine. Adjective [edit] ultrafine (comparative more ultrafine, superlative most ultrafine) (of particles) Very fine; Derived terms [edit]
Mar 17, 2020 · Ultrafine particles (UFPs) are particles with an aerodynamic diameter of 0.1 µm (100 nm) or less 1, 2. Particles may be described in terms of surface area per particle, in terms of...
Dec 13, 2021 · Ultra-fine fibers are classified into two types: (i) a continuous-filament type and (ii) a random (staple) type. Table: Shows the diameters of some familiar fibers to grasp an image of fineness of ultrafine fibers.
