微粒子(びりゅうし)

びりゅうし
noun
fine particle; microparticle
sciencenature
1. fine particle; microparticle; minute particle
An extremely small particle, often invisible to the naked eye. Used in scientific, environmental, and everyday health contexts.
空気(くうき)中(ちゅう)の微粒子(びりゅうし)を測定(そくてい)する。
To measure fine particles in the air.
マスクは微粒子(びりゅうし)の侵入(しんにゅう)を防(ふせ)ぐ。
Masks prevent the entry of fine particles.
工場(こうじょう)から排出(はいしゅつ)される微粒子(びりゅうし)が健康(けんこう)に悪影響(あくえいきょう)を及(およ)ぼすことが研究(けんきゅう)で明(あき)らかになった。
Research has revealed that fine particles emitted from factories have adverse effects on health.

A compound of 微(び) (fine; minute) and 粒子(りゅうし) (particle). Commonly encountered in discussions about air quality, pollution, and scientific research.

Common collocations

Similar words

  • 粒子(りゅうし): particle — general term for particles of any size
  • PM2.5: particulate matter 2.5 — specific measure of fine airborne particles 2.5 micrometers or smaller
  • 粉塵(ふんじん): dust; particulate matter — airborne dust and debris, especially in industrial settings
  • 花粉(かふん): pollen — a specific type of airborne particle causing allergies

Related Words

Compare: 花粉(かふん) (pollen)
Compare: 粉(ふん)じん (dust)
general
Added 2026.4.5 5:23 · Revised 2026.9.2 13:02
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