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单词 fluid
释义
fluid
(once / 491 pages)
1nadj 2adj 3adj

Something that is unstable or subject to change can be described as fluid. The fluid political situation in a particular country makes it unsafe to travel there, with the constant possibility of a violent uprising.
A liquid is a fluid — something that flows easily when poured — although gases can also be called fluid. When your doctor told you to drink lots of fluids to help your cold symptoms, she probably meant things like water or orange juice, not root beer floats. If a movement is smooth, it can also be described as fluid. You have to make fluid arm movements in ballet so you look graceful.
WORD FAMILY
fluid: fluidity, fluidly, fluidness, fluids+/fluidity: fluidities, semifluidity
USAGE EXAMPLES
However, our modern, sedentary lifestyles mean that our secondary hearts tend to weaken, which permits excessive fluid pooling into the lower body.
Washington Post(Dec 29, 2016)
Lowell was in congestive heart failure, his lungs filling with fluid.
The New Yorker(Jan 01, 2017)
The minimal use of props allows for fluid scene changes, and the symbolic white sheet creates some dramatic stage images.
New York Times(Jan 01, 2017)
1
1n continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas
Hypo|Hyper
gas
a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
liquid
fluid matter having no fixed shape but a fixed volume
atmosphere
the envelope of gases surrounding any celestial body
argonon, inert gas, noble gas
any of the chemically inert gaseous elements of the helium group in the periodic table
Cl, atomic number 17, chlorine
a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
F, atomic number 9, fluorine
a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
H, atomic number 1, hydrogen
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
N, atomic number 7, nitrogen
a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
O, atomic number 8, oxygen
a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
butane
occurs in natural gas; used in the manufacture of rubber and fuels
propane
colorless gas found in natural gas and petroleum; used as a fuel
afterdamp
a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine
firedamp
a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
arsine
a poisonous colorless flammable gas used in organic synthesis and to dope transistors and as a poison gas in warfare
nitrogen dioxide
a highly poisonous brown gas (NO2)
nitric oxide
a poisonous red-brown gas (NO)
artificial blood
a liquid that can carry large amounts of oxygen and can serve as a temporary substitute for blood
blow gas, blowing gas
the gas leaving a generator during a blow period
butene, butylene
any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
cyanogen
a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
exhaust, exhaust fumes, fumes
gases ejected from an engine as waste products
elixir
a sweet flavored liquid (usually containing a small amount of alcohol) used in compounding medicines to be taken by mouth in order to mask an unpleasant taste
air
a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
compressed gas
gas at a high pressure that can be used as a propellant
H2O, water
binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
ethene, ethylene
a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
extravasation
an extravasated liquid (blood or lymph or urine); the product of extravasation
air gas, producer gas
a gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot coke
formaldehyde, methanal
a colorless poisonous gas; made by the oxidation of methanol
greenhouse emission, greenhouse gas
a gas that contributes to the greenhouse effect by absorbing infrared radiation
bottled gas, liquefied petroleum gas
hydrocarbon gases, usually propane or butane, kept under pressure
water gas
a mixture of hydrogen and carbon monoxide with small amounts of other gases; made by blowing steam over hot coke or coal
ideal gas, perfect gas
a hypothetical gas with molecules of negligible size that exert no intermolecular forces
inhalant
something that is inhaled
instillation
a liquid that is instilled drop by drop
liquid crystal
a liquid exhibiting properties of a crystal that are not shown by ordinary liquids
methane
a colorless odorless gas used as a fuel
ozone
a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
phosgene
a colorless poisonous gas that smells like new-mown hay; used in chemical warfare
phosphine
a colorless gas with a strong fishy smell; used as a pesticide
poison gas
a gas that is poisonous to breath or contact; used in chemical warfare
propene, propylene
a flammable gas obtained by cracking petroleum; used in organic synthesis
mephitis
a poisonous or foul smelling gas emitted from the earth
sewer gas
foul-smelling gas that forms in sewers
spill
liquid that is spilled
sublimate
the product of vaporization of a solid
sulfur dioxide, sulphur dioxide
a colorless toxic gas (SO2) that occurs in the gases from volcanoes; used in many manufacturing processes and present in industrial emissions; causes acid rain
lachrymator, lacrimator, tear gas, teargas
a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds
tuberculin
a sterile liquid containing a purified protein derivative of the tuberculosis bacterium; used in the diagnosis of tuberculosis
matter
that which has mass and occupies space
2n a substance that is fluid at room temperature and pressure
Hypo|Hyper
coolant
a fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another
filtrate
the product of filtration; a gas or liquid that has been passed through a filter
ichor
(Greek mythology) the rarified fluid said to flow in the veins of the Gods
liquid
a substance that is liquid at room temperature and pressure
beverage, drink, drinkable, potable
any liquid suitable for drinking
water
a liquid necessary for the life of most animals and plants
supernatant
the clear liquid that lies above a sediment or precipitate
alcohol
any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation
ammonia, ammonia water, ammonium hydroxide
a water solution of ammonia
antifreeze
a liquid added to the water in a cooling system to lower its freezing point
distillate, distillation
a purified liquid produced by condensation from a vapor during distilling; the product of distilling
pyroligneous acid, wood vinegar
a red-brown liquid formed in distillation of wood which contains acetic acid, methanol, acetone, wood oils, and tars
medium
a liquid with which pigment is mixed by a painter
ink
a liquid used for printing or writing or drawing
grume
a thick viscous liquid
liquor
a liquid substance that is a solution (or emulsion or suspension) used or obtained in an industrial process
percolate
the product of percolation
sheep dip
a liquid mixture containing pesticides in which sheep are dipped to kill parasites
snake oil
(medicine) any of various liquids sold as medicine (as by a travelling medicine show) but medically worthless
substance
the real physical matter of which a person or thing consists
3adj characteristic of a fluid; capable of flowing and easily changing shape
Syn
runny
liquid
existing as or having characteristics of a liquid; especially tending to flow
4adj subject to change; variable
a fluid situation fraught with uncertainty
Syn
unstable
changeable, changeful
such that alteration is possible; having a marked tendency to change
5adj affording change (especially in social status)
Britain is not a truly fluid society
Syn
mobile
changeable, changeful
such that alteration is possible; having a marked tendency to change
2
adj smooth and unconstrained in movement
the fluid motion of a cat
Syn
fluent, liquid, smooth
graceful
characterized by beauty of movement, style, form, or execution
3
adj in cash or easily convertible to cash
liquid (or fluid) assets
Syn
liquid
disposable
free or available for use or disposition
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更新时间:2025/3/22 15:50:58