| erosion | | |
| n. (process) | 1. eating away, eroding, erosion, wearing, wearing away | (geology) the mechanical process of wearing or grinding something down (as by particles washing over it). |
| ~ geology | a science that deals with the history of the earth as recorded in rocks. |
| ~ chatter mark | marks on a glaciated rock caused by the movement of a glacier. |
| ~ ablation | the erosive process that reduces the size of glaciers. |
| ~ attrition, corrasion, detrition, abrasion | erosion by friction. |
| ~ beach erosion | the erosion of beaches. |
| ~ geologic process, geological process | (geology) a natural process whereby geological features are modified. |
| ~ deflation | (geology) the erosion of soil as a consequence of sand and dust and loose rocks being removed by the wind.; "a constant deflation of the desert landscape" |
| ~ planation | the process of erosion whereby a level surface is produced. |
| ~ soil erosion | the washing away of soil by the flow of water. |
| n. (state) | 2. erosion | condition in which the earth's surface is worn away by the action of water and wind. |
| ~ environmental condition | the state of the environment. |
| n. (process) | 3. erosion | a gradual decline of something.; "after the accounting scandal there was an erosion of confidence in the auditors" |
| ~ decline, diminution | change toward something smaller or lower. |
| n. (process) | 4. corroding, corrosion, erosion | erosion by chemical action. |
| ~ chemical action, chemical change, chemical process | (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved. |
| ~ pitting, indentation, roughness | the formation of small pits in a surface as a consequence of corrosion. |
| ~ rusting, rust | the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water. |
| wash out | | |
| v. (social) | 1. rain out, wash out | prevent or interrupt due to rain.; "The storm had washed out the game" |
| ~ prevent, keep | stop (someone or something) from doing something or being in a certain state.; "We must prevent the cancer from spreading"; "His snoring kept me from falling asleep"; "Keep the child from eating the marbles" |
| v. (contact) | 2. wash out | wash free from unwanted substances, such as dirt.; "Wash out your dirty shirt in the sink" |
| ~ wash off, wash away, wash out, wash | remove by the application of water or other liquid and soap or some other cleaning agent.; "he washed the dirt from his coat"; "The nurse washed away the blood"; "Can you wash away the spots on the windows?"; "he managed to wash out the stains" |
| ~ launder, wash | cleanse with a cleaning agent, such as soap, and water.; "Wash the towels, please!" |
| v. (contact) | 3. wash out | wear or destroy by the force of water.; "The hail storms had washed out the bridges" |
| ~ ruin, destroy | destroy completely; damage irreparably.; "You have ruined my car by pouring sugar in the tank!"; "The tears ruined her make-up" |
| v. (change) | 4. wash, wash away, wash off, wash out | remove by the application of water or other liquid and soap or some other cleaning agent.; "he washed the dirt from his coat"; "The nurse washed away the blood"; "Can you wash away the spots on the windows?"; "he managed to wash out the stains" |
| ~ remove, take away, withdraw, take | remove something concrete, as by lifting, pushing, or taking off, or remove something abstract.; "remove a threat"; "remove a wrapper"; "Remove the dirty dishes from the table"; "take the gun from your pocket"; "This machine withdraws heat from the environment" |
| ~ wash, rinse | clean with some chemical process. |
| ~ wash out | wash free from unwanted substances, such as dirt.; "Wash out your dirty shirt in the sink" |
| v. (change) | 5. wash out | deplete of strength or vitality.; "The illness washed her out" |
| ~ weaken | lessen the strength of.; "The fever weakened his body" |
| v. (change) | 6. wash out | drain off the color in the course of laundering.; "The harsh soap washed out the delicate blouse" |
| ~ wash out | lose color in the process of being washed.; "The expensive shirt washed out in the German washing machine" |
| ~ discolor | cause to lose or change color.; "The detergent discolored my shirts" |
| v. (change) | 7. wash out | lose color in the process of being washed.; "The expensive shirt washed out in the German washing machine" |
| ~ wash out | drain off the color in the course of laundering.; "The harsh soap washed out the delicate blouse" |
| ~ discolor | lose color or turn colorless.; "The painting discolored" |
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