al·​lu·​vi·​ate | \ -vēˌāt, usually -ād + V \

Definition of alluviate

transitive verb

: to cover with alluvium an alluviated valley

intransitive verb

: to deposit alluvium

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of alluviate

1810, in the meaning defined at transitive sense

History and Etymology for alluviate

alluvium + -ate

Keep scrolling for more

Learn More about alluviate

Time Traveler for alluviate

Time Traveler

The first known use of alluviate was in 1810

See more words from the same year

Statistics for alluviate

Cite this Entry

“Alluviate.” Dictionary, Merriam-Webster, Accessed 29 Nov. 2020.

Comments on alluviate

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


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

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

Love words? Need even more definitions?

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