摩耗(まもう)

まもう
noun / verb (suru)
wear and tear; abrasion; attrition
1. wear and tear; abrasion; wearing down
Gradual deterioration of a surface through friction or repeated use. Used for physical objects like tires, brakes, and machinery parts.
タイヤが摩耗(まもう)している。
The tires are worn down.
ブレーキパッドの摩耗(まもう)が激(はげ)しい。
The brake pads are severely worn.
長年(ながねん)の使用(しよう)で部品(ぶひん)が摩耗(まもう)して交換(こうかん)が必要(ひつよう)になった。
Years of use wore down the parts and they needed to be replaced.

A compound of 摩(ま) (to rub, to grind) and 耗(もう) (to wear out, to diminish). Primarily a technical term used for physical wear on materials and machinery.

COMMON COLLOCATIONS:

  • 摩耗(まもう)が激(はげ)しい (severely worn)
  • 摩耗(まもう)に強(つよ)い (resistant to wear)
  • 摩耗(まもう)防止(ぼうし) (wear prevention)
  • タイヤの摩耗(まもう) (tire wear)
  • 経年(けいねん)摩耗(まもう) (wear from aging)

Also written as 磨耗(まもう) with the alternate kanji 磨(ま). Both writings are common.

general
Added 2026.3.4 13:01
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