1.
erosion
The gradual wearing away of rock, soil, or land by natural forces such as water, wind, or ice.
2.
encroachment, erosion (figurative)
The gradual intrusion into or wearing away of someone's territory, rights, market share, or similar abstract domains.
Usage
Used as a する verb: 侵食する. Both literal (geological) and figurative uses are common. The passive form 侵食される (to be eroded) is very frequent.
Etymology
侵 (to invade) + 食 (to eat/consume). The image of something gradually being eaten away.
Common collocations
Writing
- Geography texts also write 浸食 (浸, to soak) for erosion by water; 侵食 is the general spelling and the only one for the figurative sense.
Related Words
Compare:
堆積 (deposition)