salt dome

noun

: a domical anticline in sedimentary rock that has a mass of rock salt as its core

Examples of salt dome in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Louisville recently added roughly 500 tons to its supply and its salt dome is now about two-thirds full, Bell said. — Caroline Neal, Louisville Courier Journal, 21 Jan. 2026 Workers spent much of the day replenishing road salt supplies at the city's four salt domes in preparation for the upcoming snow. — Marina Johnson, The Courier-Journal, 10 Jan. 2025 The Public Works facility salt dome, one of the city’s three domes, is almost empty, the report said. — R. Christian Smith, Chicago Tribune, 18 May 2026 The first involves drilling into naturally occurring salt domes in the earth and injecting water to pump and hollow out the space. — Jordan Blum, Fortune, 23 Dec. 2025 Its oil is stored underground in a series of large salt domes in four locations across the Gulf Coast, in Texas and Louisiana. — Scott L. Montgomery, The Conversation, 23 Mar. 2026 While batteries can store energy for hours at a time, a number of companies are using hydrogen in places such as large underground salt domes that can store energy for much longer periods of time — for months, in some cases. — Rob Nikolewski, San Diego Union-Tribune, 3 Oct. 2025

Word History

First Known Use

1908, in the meaning defined above

Time Traveler
The first known use of salt dome was in 1908

Rhymes for salt dome

See All Rhymes for salt dome

Browse Nearby Words

salt-desert cavy
salt dome
Salteaux
See all Nearby Words

Cite this Entry

“Salt dome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/salt%20dome. Accessed 8 Jul. 2026.

Copy Citation

More from Merriam-Webster on salt dome

Britannica.com: Encyclopedia article about salt dome

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of gambol

See Definitions and Examples »

Popular in Grammar & Usage

See More

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)
See More

Popular in Wordplay

See More

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
hangman letters and game
Hangman Lightning Round Figure out which word fits in the blanks.
See All