Seⁿ-sian

Seⁿ-sian, he̍k-chiá kóng hú-si̍t (腐蝕; Eng-gí: corrosion), sī keng-kòe liān-chè ê kim-sio̍k choán-piàn hiòng khah ún-tēng hêng-sek ê kòe-têng, sī kap khoân-kéng lāi kî-tha seng-hun sán-seng hòa-ha̍k he̍k-chiá tiān-hòa-ha̍k hoán-èng, piàn chò pí-lūn sng-hòa-bu̍t (oxide), chúi-sng-hòa-bu̍t (hydroxide), ia̍h sī liû-hòa-bu̍t (sulfide) téng-téng.

Siong-koan

• Thih-sian (rust)