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deposit

dih-PAH-zit /dɪˈpɒz.ɪt/

nounverbB1TOEFLIELTSSAT

generalscientific

A layer or accumulation of matter settled naturally; or to lay down carried material.

In geology, refers to both the act of dropping carried sediments/minerals and the resulting accumulation itself.

The story behind the word. From Latin 'depositum', past participle of 'deponere' (to place down, lay aside), composed of 'de-' (down) and 'ponere' (to put). Geologically, rivers and glaciers literally 'put down' carried load when momentum slows.

Word relationships

accumulation: Accumulation is a general gathering, while deposit implies settling from wind, water, or chemical processes.
layer: Layer describes geometric form, whereas deposit emphasizes the physical dropping and settling action.

erode: To wear away and carry off material, directly contrasting with depositing material.

Commonly confused with

erosion: Erosion removes rock and soil; deposit drops rock and soil into a new resting location.

Word family

deposition (noun): The geological process of laying down sediment
depositor (noun): One who deposits funds or materials

Collocations

mineral deposit
sedimentary deposit
deposit sediment
rich deposit

Example sentences

"Seasonal flooding rivers deposit rich silt along the fertile valley floors every spring." Hydrology report
"Prospectors discovered a massive mineral deposit of copper embedded deep within the hillside rock." Mining exploration

Memory hook

DEPOSIT = DROP IT down onto the floor. Place or settle material down.

When not to use

Do not confuse with bank deposits unless writing specifically about financial contexts.

Fun facts

Gold deposits found in riverbeds are known as placer deposits, accumulated where fast water currents slow down and drop heavy gold dust.