侵食作用(しんしょくさよう) しんしょくさよう noun erosion; erosive action geography 1. erosion; erosive action The geological process by which water, wind, or ice gradually wears away rock and soil and carries the material elsewhere. 川(かわ)の侵食作用(しんしょくさよう)で谷(たに)ができる。🔊 Rivers form valleys through erosion. 風(かぜ)の侵食作用(しんしょくさよう)が岩(いわ)を削(けず)る。🔊 Wind erosion wears away the rock. 長(なが)い年月(ねんげつ)をかけた侵食作用(しんしょくさよう)が地形(ちけい)を変(か)えていく。🔊 Erosion over long ages gradually reshapes the landscape. Usage: 侵食作用(しんしょくさよう) is the geological action of erosion, combining 侵食(しんしょく) (erosion) with 作用(さよう) (action, effect). It is common in earth-science contexts.Common collocations水(みず)の侵食作用(しんしょくさよう): water erosion侵食作用(しんしょくさよう)を受(う)ける: to undergo erosionSimilar words風化作用(ふうかさよう): weathering — the breakdown of rock in place, without transport堆積(たいせき): deposition — the opposite process, in which sediment builds up Related Words Compare: 風化作用(ふうかさよう) (weathering) Compare: 堆積(たいせき) (deposition) general Added 2026.7.2 3:18 · Revised 2026.9.2 13:02 29500/29626_shinshokusayou