微粒子|びりゅうしbiryuushi[2]nakadaka (mid-high)

1. nouncorpuscle; minute particle; particulate
   微粒子びりゅうしは肉眼にくがんではほとんど見みえない。↗

   Minute particles are hardly visible to the naked eye.

• Synonym微塵みじんNeutralRefers to fine dust and small fragments; as 「微塵も」 followed by a negative it means 'not at all'; often used figuratively.
• Synonym微粒びりゅうNeutralRefers to minute particles; synonymous with 「微粒子」 but used less often.

Use 「微粒子」 for extremely fine particles; it has a scientific flavor, as in 「微粒子を吸い込む」. 「微粒」 means the same but is less common. For fine dust or fragments, or 'not the slightest' with 「微塵も」 followed by a negative, use 「微塵」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. とても細こまかくて小ちいさい粒つぶ。