alluvium

noun
al·​lu·​vi·​um | \ ə-ˈlü-vē-əm How to pronounce alluvium (audio) \
plural alluviums or alluvia\ -​vē-​ə How to pronounce alluvia (audio) \

Definition of alluvium

: clay, silt, sand, gravel, or similar detrital material deposited by running water

First Known Use of alluvium

1810, in the meaning defined above

History and Etymology for alluvium

Medieval Latin, alteration of Latin alluvio

Keep scrolling for more

Learn More about alluvium

Statistics for alluvium

Look-up Popularity

Time Traveler for alluvium

The first known use of alluvium was in 1810

See more words from the same year

More from Merriam-Webster on alluvium

Rhyming Dictionary: Words that rhyme with alluvium

Britannica.com: Encyclopedia article about alluvium

Comments on alluvium

What made you want to look up alluvium? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to mark by some ceremony or observation

Get Word of the Day daily email!

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!