fluid

See also: Fluid

English

Etymology

From Middle English fluid, from Latin fluidus (“flowing; fluid”), from Latin fluō (“to flow”), from Proto-Indo-European *bʰleh₁- (“to swell; surge; overflow; run”). Akin to Ancient Greek φλύειν (phlúein, “to swell; overflow”).

Pronunciation

  • (UK) IPA(key): /ˈfluːɪd/, [ˈfluwɪd], /ˈflʊɪ̯d/
  • (US) IPA(key): /ˈfluːɪd/, [ˈfluwɪd]
  • Audio (US)(file)
  • Rhymes: -uːɪd

Noun

fluid (countable and uncountable, plural fluids)

  1. Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma.
    • 2013 March 1, Frank Fish, George Lauder, “Not Just Going with the Flow”, in American Scientist‎, volume 101, number 2, page 114:
      An extreme version of vorticity is a vortex. The vortex is a spinning, cyclonic mass of fluid, which can be observed in the rotation of water going down a drain, as well as in smoke rings, tornados and hurricanes.

Derived terms

Translations

Adjective

fluid (comparative more fluid, superlative most fluid)

  1. (not comparable) Of or relating to fluid.
  2. In a state of flux; subject to change.
    • 2013 August 3, “Boundary problems”, in The Economist, volume 408, number 8847:
      Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.
  3. Moving smoothly, or giving the impression of a liquid in motion.
  4. (of an asset) Convertible into cash.
  5. (rare) Genderfluid.
    • 2017, Rick Riordan, Magnus Chase and the Hammer of Thor (→ISBN), page 274 (the genderfluid character Alex Fierro is speaking):
      “Oh, Loki made sure of that. My mortal parents blamed him for the way I was, for being fluid.”

Translations

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.

Further reading

  • fluid in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
  • fluid in The Century Dictionary, The Century Co., New York, 1911
  • fluid at OneLook Dictionary Search

Catalan

Adjective

fluid (feminine fluida, masculine plural fluids, feminine plural fluides)

  1. fluid

Noun

fluid m (plural fluids)

  1. fluid

German

Adjective

fluid (not comparable)

  1. fluid

Declension

Synonyms

Further reading

Norwegian Bokmål

Noun

fluid n (definite singular fluidet, indefinite plural fluid or fluider, definite plural fluida or fluidene)

  1. a fluid

Synonyms

Derived terms

References

Norwegian Nynorsk

Noun

fluid n (definite singular fluidet, indefinite plural fluid, definite plural fluida)

  1. a fluid

Synonyms

Derived terms

References

Serbo-Croatian

Pronunciation

  • IPA(key): /flûiːd/
  • Hyphenation: flu‧id

Noun

flȕīd m (Cyrillic spelling флу̏ӣд)

  1. fluid

Declension

Spanish

Verb

fluid

  1. (Spain) Informal second-person plural (vosotros or vosotras) affirmative imperative form of fluir.
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