Any of various powdery or scaly reddish-brown or reddish-yellow hydrated ferric oxides formed on iron and iron-containing materials by low-temperature oxidation in the presence of water.
파생어
rusty [형]
예문
1. keep from rust (녹슬지 않게 하다) 2. the rust on a nail (못의 녹) 3. get the rust off (녹을 없애다) 4. talents left to rust (썩여 둔 재능)
