ALLUVIUM Definition & Meaning

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alluvium

[ uh-loo-vee-uhm ]

Phonetic (Standard)IPA

noun

plural alluviums, alluvia

a deposit of sand, mud, etc., formed by flowing water.
the sedimentary matter deposited thus within recent times, especially in the valleys of large rivers.

alluvium

/ əˈ��ː��ɪə�� /

noun

a fine-grained fertile soil consisting of mud, silt, and sand deposited by flowing water on flood plains, in river beds, and in estuaries

alluvium

/ ə-��̅��̅′��ŧ-ə�� /

, Plural alluviums

Sand, silt, clay, gravel, or other matter deposited by flowing water, as in a riverbed, floodplain, delta, or alluvial fan. Alluvium is generally considered a young deposit in terms of geologic time.

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�y��vlog History and Origins

Origin of alluvium¹

1655–65; < Latin, noun use of neuter of alluvius washed against, equivalent to alluv- ( alluvion ) + -ius, -ium adj. suffix; -ium

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�y��vlog History and Origins

Origin of alluvium¹

C17: from Latin; see alluvion

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Example Sentences

Examples have not been reviewed.

Deposits of alluvium and volcanic ash have made desirable soil that is among the top 2% in the world.

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Paved surfaces end miles from the rock outcrop, so we drive on overgrown rutted two-tracks that cross the loose sandy dune fields that show up on our geologic maps as “QAL”—Quaternary alluvium.

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“Great buildings, like great mountains, are the work of centuries,” Hugo says, whereby “each wave of time lays down its alluvium”.

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The island’s geology — a heart of granite in the west, compacted alluvium in the east — is such that most of it could be hollowed out.

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“In a way, the flood is a blessing as fresh silt and alluvium deposits increase the productivity of the forest undergrowth,” Das tells the Hindu.

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