erosion meaning
EN
[əˈroʊˌʒən] [əˈrəʊˌʒən] WErosion
- In geomorphology and geology, erosion is the action of exogenic processes (such as water flow or wind) which remove soil and rock from one location on the Earth's crust, then transport it to another location where it is deposited.
- While erosion is a natural process, human activities have increased by 10-40 times the rate at which erosion is occurring globally. Excessive (or accelerated) erosion causes both 'on-site' and 'off-site' problems.
- Intensive agriculture, deforestation, roads, anthropogenic climate change and urban sprawl are amongst the most significant human activities in regard to their effect on stimulating erosion.
FR érosion 
- NounPLerosionsSUF-ion
- (uncountable) The result of having been being worn away or eroded, as by a glacier on rock or the sea on a cliff face.
- (uncountable) The changing of a surface by mechanical action, friction, thermal expansion contraction, or impact.
- (uncountable, figuratively) The gradual loss of something as a result of an ongoing process.
- the erosion of a person's trust
- trademark erosion, caused by everyday use of the trademarked term
- (uncountable) Destruction by abrasive action of fluids.
- (mathematics, image processing) One of two fundamental operations in morphological image processing from which all other morphological operations are derived.
- (dentistry) Loss of tooth enamel due to non-bacteriogenic chemical processes.
- (medicine) A shallow ulceration or lesion, usually involving skin or epithelial tissue.
- (uncountable) The result of having been being worn away or eroded, as by a glacier on rock or the sea on a cliff face.
Definition of erosion in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Singularia tantum
- Uncountable nouns
- Uncountable nouns
- Countable nouns
- Nouns
- en erosions
- en erosional
- en erosionally
- en erosionproof
Source: Wiktionary
Grammatically, this word "erosion" is a noun, more specifically, a countable noun and a singularia tantum.