fluid ounce

noun

1
: a U.S. unit of liquid capacity equal to 1/16 pint see Weights and Measures Table
2
: a British unit of liquid capacity equal to 1/20 pint see Weights and Measures Table

Examples of fluid ounce 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.
Each 12-fluid ounce can of Poppi Berries & Cream contains 35 calories, 5 grams of sugar, and 3 grams of fiber. Kait Hanson, Southern Living, 5 Apr. 2026 Diet Coke Lime would be sold individually in 20 fluid ounce plastic bottles, and in 12-packs of 12 fluid ounce cans, according to the website. Rey Covarrubias Jr, AZCentral.com, 7 Oct. 2025 Key Facts The recall specifically applies to production lots of High Noon Beach Variety packs, which are 12-pack products containing 12 fluid ounce cans. Antonio Pequeño Iv, Forbes.com, 30 July 2025 Well, without making this super complicated, 1 fluid ounce is roughly equal to 1 ounce. Alyssa Grabinski, People.com, 19 May 2025 See All Example Sentences for fluid ounce

Word History

First Known Use

1811, in the meaning defined at sense 1

Time Traveler
The first known use of fluid ounce was in 1811

Browse Nearby Words

Cite this Entry

“Fluid ounce.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluid%20ounce. Accessed 6 Jul. 2026.

Kids Definition

fluid ounce

noun
: a unit of liquid capacity equal to ¹⁄₁₆ pint (about 29.6 milliliters) see measure

Medical Definition

fluid ounce

noun
1
: a United States unit of liquid capacity equal to ¹/₁₆ pint
2
: a British unit of liquid capacity equal to ¹/₂₀ pint

More from Merriam-Webster on fluid ounce

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