Meanings
nounfluid ounce (plural fluid ounces)
plural fluid ounces
- Any of various units of volume used for liquid measure, all approximately 1.73–1.83 cubic inches or 28.4–30 milliliters.
- UKA unit of volume equal to one twentieth of an imperial pint or approximately 28.4 ml
Synonyms & antonyms
nouna British imperial unit of capacity or volume (liquid or dry) equal to 8 fluid drams or 28.416 cubic centimeters (1.734 cubic inches)
Similar
Broader
British capacity unitImperial capacity unit
nouna United States unit of capacity or volume equal to 1.804 cubic inches
Similar
Broader
United States liquid unit
Synonym sets from Open English WordNet, CC BY 4.0.
Translations
Finnish nesteunssi
- nesteunssiunit of volume for liquid measure
French once liquide
- once liquideunit of volume for liquid measure
German Flüssigunze
- Flüssigunzeunit of volume for liquid measure
Irish unsa leachtach
- unsa leachtachunit of volume for liquid measure
Italian oncia fluida
- oncia fluidaunit of volume for liquid measure
Polish uncja objętości
- uncja objętościunit of volume for liquid measure
Portuguese onça líquida
- onça líquidaunit of volume for liquid measure
Cite this entry
APA
fluid ounce. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/fluid%20ounce
MLA
“fluid ounce.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fluid%20ounce. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “fluid ounce,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/fluid%20ounce.
Source: fluid ounce on Wiktionary, CC BY-SA 4.0.