不純物(ふじゅんぶつ) ふじゅんぶつ noun impurity; impurities technicalscience 1. impurity; impurities; contaminant Unwanted substances mixed into a material, making it impure. Used in scientific, industrial, and everyday contexts. 水(みず)から不純物(ふじゅんぶつ)を取(と)り除(のぞ)く。🔊 To remove impurities from water. この金属(きんぞく)には不純物(ふじゅんぶつ)が多(おお)く含(ふく)まれている。🔊 This metal contains many impurities. 不純物(ふじゅんぶつ)を取(と)り除(のぞ)くことで、製品(せいひん)の品質(ひんしつ)が向上(こうじょう)する。🔊 By removing impurities, the product quality improves. Usage不純物(ふじゅんぶつ) is composed of 不(ふ) (un-/not), 純(じゅん) (pure), and 物(ぶつ) (substance). It is used in science, manufacturing, and water treatment contexts.Common collocations不純物(ふじゅんぶつ)を取(と)り除(のぞ)く (to remove impurities)不純物(ふじゅんぶつ)を含(ふく)む (to contain impurities)不純物(ふじゅんぶつ)が混入(こんにゅう)する (impurities get mixed in)不純物(ふじゅんぶつ)の除去(じょきょ) (removal of impurities) general Added 2026.3.5 17:43 · Revised 2026.9.2 13:01 15000/15163_fujunbutsu