fluidとは 意味・読み方・使い方

発音

• IPA^(key): /ˈfluːɪd/
• (廃れた用法) IPA^(key): /ˈfljuːɪd/^[1]
• 韻: -uːɪd

名詞

fluid (countable かつ uncountable, 複数形 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^[1], 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.

2. A liquid (as opposed to a solid または gas).
   • 1992, Christopher G. Morris; Academic Press; Christopher W. Morris, Academic Press Dictionary of Science and Technology, Gulf Professional Publishing, →ISBN, page 854:

     fluid inclusion Petrology, a tiny fluid- or gas-filled cavity in an igneous rock. 1-100 micrometers in diameter, formed by the entrapment of a fluid, typically that from which the rock crystallized.

   • 1995, David Kemper and Michael Piller, “Time and Again”, in Star Trek: Voyager, season 1, episode 4, spoken by The Doctor and Kes (Robert Picardo かつ Jennifer Lien):

     The Doctor: Get a good night's sleep and drink plenty of fluids. / Kes: Fluids? / The Doctor: Everybody should drink plenty of fluids.

   • 2006, Jörg Fitter; Thomas Gutberlet, Neutron Scattering in Biology: Techniques and Applications, Springer Science & Business Media, →ISBN, page 236:

     For studying interfaces between solid and another solid, fluid, or gas, a sample can be oriented with its reflecting surface(s) vertical (かつ with the scattering plane, as defined by nominal incident かつ reflected wavevectors, horizontal).

   • 2011, Andrew T Raftery; Michael S. Delbridge; Marcus J. D. Wagstaff, Churchill's Pocketbook of Surgery, International Edition E-Book, Elsevier Health Sciences, →ISBN, page 11:

     Tenderness: is the lump tender?
     Composition: is the mass solid, fluid or gas?

   • 2012, Will Pettijohn P.E.C., Oil & Gas Handbook: A Roughneck's guide to the Universe, AuthorHouse, →ISBN, page 23:

     The choke manifold then expels the fluid or gas to the gas buster or a panic line. The panic line will then either send the fluid or gas to the reserve pit or a flare stack or flare tank.

   • For more quotations using this term, see Citations:fluid.
3. (specifically, medicine, colloquial, typically in the plural) Intravenous fluids.

派生語

形容詞

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.”

同意語

• (of または relating to fluid): fluidical, liquid; see also Thesaurus:fluidic
• (subject to change): unstable, variable; see also Thesaurus:changeable
• (moving smoothly): fluent, fluxive; see also Thesaurus:flowing or Thesaurus:runny

関連する語

• fluctuate
• fluctuation
• fluency
• fluent
• flux
• fluidal
• fluidic
• fluidics
• fluidify
• fluidise
• fluidize
• fluidity
• fluidous
• semifluid

参照

Further reading

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