fluid

flu·id

F0203600 (flo͞o′ĭd)n. A continuous, amorphous substance whose molecules move freely past one another and that has the tendency to assume the shape of its container; a liquid or gas.adj.1. Of, relating to, or characteristic of a fluid.2. Readily reshaped; pliable.3. Smooth and flowing; graceful: the fluid motion of a cat.4. a. Changing or tending to change; variable: a fluid situation fraught with uncertainty.b. Characterized by or allowing social mobility: a fluid society.5. Convertible into cash: fluid assets.

[From Middle English, flowing, from Old French fluide, from Latin fluidus, from fluere, to flow; see bhleu- in Indo-European roots.]

flu·id′i·ty (-ĭd′ĭ-tē), flu′id·ness n.flu′id·ly adv.

fluid

(ˈfluːɪd) n (General Physics) a substance, such as a liquid or gas, that can flow, has no fixed shape, and offers little resistance to an external stressadj1. (General Physics) capable of flowing and easily changing shape2. (General Physics) of, concerned with, or using a fluid or fluids3. constantly changing or apt to change4. smooth in shape or movement; flowing[C15: from Latin fluidus, from fluere to flow] ˈfluidal adj ˈfluidness n ˈfluidly, ˈfluidally adv

flu•id

(ˈflu ɪd)

n. 1. a substance, as a liquid or gas, that is capable of flowing and that changes its shape at a steady rate when acted upon by a force. adj. 2. pertaining to a substance that easily changes its shape; capable of flowing. 3. consisting of or pertaining to fluids. 4. changing easily or readily; not fixed, stable, or rigid. 5. smooth and flowing: fluid movements. 6. convertible into cash; liquid: fluid assets. [1595–1605; < Latin fluidus flowing freely, derivative of fluere to flow] flu′id•al, adj. flu′id•ly, flu′id•al•ly, adv. flu′id•ness, n. synonym: See liquid.

flu·id

(flo͞o′ĭd) A substance, such as air or water, in which the atoms or molecules can freely move past one another. Fluids flow easily and take on the shape of their containers. All liquids and gases are fluids.

fluidity (flo͞o-ĭd′ĭ-tē) noun

fluid

1. A substance which can flow because its particles are not fixed in position. Liquids and gases are fluids.2. A (gas or liquid) substance which takes the shape of its container.3. Used to distinguish units of liquid (fluid) volume as opposed to dry (solid) volume.

Thesaurus

Noun	1.	fluid - a substance that is fluid at room temperature and pressuresubstance - the real physical matter of which a person or thing consists; "DNA is the substance of our genes"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; "he added more coolant to the car's radiator"; "the atomic reactor used a gas coolant"; "lathe operators use an emulsion of oil and water as a coolant for the cutting tool"filtrate - the product of filtration; a gas or liquid that has been passed through a filterichor - (Greek mythology) the rarified fluid said to flow in the veins of the Godsliquid - a substance that is liquid at room temperature and pressure
	2.	fluid - continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gasmatter - that which has mass and occupies space; "physicists study both the nature of matter and the forces which govern it"gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitelyliquid - fluid matter having no fixed shape but a fixed volume
Adj.	1.	fluid - subject to change; variable; "a fluid situation fraught with uncertainty"; "everything was unstable following the coup"unstablechangeful, changeable - such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"
	2.	fluid - characteristic of a fluid; capable of flowing and easily changing shaperunnyliquid - existing as or having characteristics of a liquid; especially tending to flow; "water and milk and blood are liquid substances"
	3.	fluid - smooth and unconstrained in movement; "a long, smooth stride"; "the fluid motion of a cat"; "the liquid grace of a ballerina"fluent, smooth, liquidgraceful - characterized by beauty of movement, style, form, or execution
	4.	fluid - in cash or easily convertible to cash; "liquid (or fluid) assets"liquiddisposable - free or available for use or disposition; "every disposable piece of equipment was sent to the fire"; "disposable assets"
	5.	fluid - affording change (especially in social status); "Britain is not a truly fluid society"; "upwardly mobile"mobilechangeful, changeable - such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"

fluid

noun1. liquid, solution, juice, liquor, sap Make sure that you drink plenty of fluids.adjective1. flowing, easy, natural, smooth, elegant, graceful, fluent, effortless, feline, sinuous long fluid dresses His painting became more fluid.2. changeable, mobile, flexible, volatile, unstable, adjustable, fluctuating, indefinite, shifting, floating, adaptable, mercurial, protean, mutable The situation is extremely fluid.
changeable firm, fixed, definite, immobile, immutable3. liquid, running, flowing, watery, molten, melted, runny, liquefied, in solution, aqueous List the fluid and cellular components of blood.
liquid set, hard, firm, solid, rigid

fluid

adjective1. Changing easily, as in expression:changeable, mobile, plastic.2. Marked by facility, especially of expression:easy, effortless, flowing, fluent, graceful, smooth.3. Capable of or liable to change:alterable, changeable, inconstant, mutable, uncertain, unsettled, unstable, unsteady, variable, variant.Archaic: various.

Translations

易变的流体流体的流畅的液体

fluid

(ˈfluid) noun1. a substance (liquid or gas) whose particles can move about freely. 流体2. any liquid substance. cleaning fluid.液体 adjective1. able to flow like a liquid. a fluid substance.流体的2. smooth and graceful. fluid movements.流畅的3. (of arrangements, plans etc) able to be changed easily. My holiday plans are fluid.易变的fluˈidity noun流动性

Could you add some windshield wiper fluid? (US)
Can you top up the windscreen washers? (UK) → 请加满挡风玻璃清洁液

fluid

flu·id

(flū'id), 1. A nonsolid substance (that is, liquid or gas) that tends to flow or conform to the shape of the container in which it is kept. 2. Consisting of particles or distinct entities that can readily change their relative positions, that is, tending to move or capable of flowing. [L. fluidus, fr. fluo, to flow]

fluid

A liquid or gas which conforms to the shape of its container. See Body fluid, Cerebrospinal fluid, Pericardial fluid.

flu·id

(flū'id) 1. A nonsolid substance, such as a liquid or gas, which tends to flow or conform to the shape of the container. 2. Consisting of particles or distinct entities that can readily change their relative positions; tending to move or capable of flowing. [L. fluidus, fr. fluo, to flow]

fluid

(floo'id) [L. fluidus, flowing] A nonsolid, liquid, or gaseous substance. See: secretion

allantoic fluid

Fluid found in the fetal membrane that develops from the yolk sac.

amniotic fluid

A clear fluid that surrounds the fetus in the amniotic sac. Its primary functions are to suspend and protect the growing fetus, allow freedom of movement, maintain even constant temperature, and aid normal development of the fetal lungs. Volume increases from about 50 ml at 12 gestational weeks to around 800 ml at 38 weeks. The fluid is constantly being circulated by the fetus swallowing fluid, urinating, and inhaling/exhaling fluid during fetal respiration. Samples of amniotic fluid may be collected by amniocentesis to identify fetal chromosomal abnormalities, state of health, and maturity. Synonym: liquor amnii. See: amniocentesis; oligohydramnios; polyhydramnios

ascitic fluid

Clear, pale, straw-colored fluid occurring in ascites. The fluid is normally sterile; its specific gravity is normally 1.005 to 1.015; the cellular content is less than 250 white blood cells per cubic millimeter, and its protein content is low. Cancer, heart failure, liver failure, peritonitis, and tuberculosis may alter the amount or character of ascites.

body fluid

A fluid found in one of the fluid compartments of the body. The principal fluid compartments are intracellular and extracellular. A much smaller segment, the transcellular, includes fluid in the tracheobronchial tree, the gastrointestinal tract, and the bladder; cerebrospinal fluid; and the aqueous humor of the eye. The chemical composition of fluids in the various compartments is carefully regulated. In a normal 154 lb (70 kg) adult human male, 60% of total body weight (i.e., 42 L) is water; in a normal adult female is 55% of total body weight is water (39 L). See: acid-base balance; fluid replacement; fluid balance

Bouin fluid

See: Bouin fluid

FLOW OF CEREBROSPINAL FLUID THROUGH THE BRAIN AND SPINAL COLUMN: Formation, circulation, and reabsorption of CSF

cerebrospinal fluid

Abbreviation: CSF
The sodium-rich, potassium-poor tissue fluid of the brain and spinal cord. The fluid supplies nutrients and removes waste products; it is also a watery cushion that absorbs mechanical shock to the central nervous system. Synonym: spinal fluid See: lumbar puncture

Formation

The fluid is formed by the choroid plexuses of the lateral and third ventricles. That of the lateral ventricles passes through the foramen of Monro to the third ventricle, and through the aqueduct of Sylvius to the fourth ventricle. There it may escape through the central foramen of Magendie or the lateral foramina of Luschke into the cisterna magna and to the cranial and spinal subarachnoid spaces. It is reabsorbed through the arachnoid villi into the blood in the cranial venous sinuses, and through the perineural lymph spaces of both the brain and the cord. See: illustration

Characteristics

The fluid is normally watery, clear, colorless, and almost entirely free of cells. The initial pressure of spinal fluid in a side-lying adult is about 100 to 180 mm of water. On average, the total protein is about 15 to 50 mg/dL, and the concentration of glucose is about twothirds the concentration of glucose in the patient's serum. Its pH, which is rarely measured clinically, is slightly more acidic than the pH of blood. Its concentration and alkaline reserve are similar to those of blood. It does not clot on standing. Turbidity suggests an excessively high number of cells in the fluid, typically white blood cells in infections such as meningitis or red blood cells in intracerebral hemorrhage.

CSF may appear red following a recent subarachnoid hemorrhage or when the lumbar puncture that obtained the CSF caused traumatic injury to the dura that surround the fluid. Centrifugation of the fluid can distinguish between these two sources of blood in the spinal fluid: the supernatant is usually stained yellow (xanthochromic) only when there has been a recent subarachnoid hemorrhage.

Many conditions may cause increases in CSF total protein: infections, such as acute or chronic meningitis; multiple sclerosis (when oligoclonal protein bands are present); Guillain-Barré syndrome; and chronic medical conditions like cirrhosis and hypothyroidism (when diffuse hypergammaglobulinemia is present). The concentration of glucose in the CSF rises in uncontrolled diabetes mellitus and drops precipitously in meningitis, sarcoidosis, and some other illnesses. Malignant cells in the CSF, demonstrated after centrifugation or filtering, are hallmarks of carcinomatous meningitis.

Microorganisms

The CSF is normally sterile. Meningococci, streptococci, Haemophilus influenzae, Listeria monocytogenes, and gram-negative bacilli are recovered from the CSF only in cases of meningitis. Syphilitic meningitis is usually diagnosed with serological tests for the disease, such as the venereal disease research laboratory (VDRL) test, the rapid plasma reagin (RPR) test, or the fluorescent treponemal antibody test. Cryptococcal infection of the CSF may be demonstrated by India ink preparations, or by latex agglutination tests. Tuberculous meningitis may sometimes be diagnosed with Ziehl-Neelsen stains, but more often this is done with cultures. These last three infections (syphilis, cryptococcosis, and tuberculosis) are much more common in patients who have acquired immunodeficiency syndrome (AIDS) than in the general population.

illustration

crevicular fluid

Gingival sulcular fluid.

extracellular fluid

The body fluid outside of cells. It includes the interstitial, intravascular, and cerebrospinal fluids. Water is the common solvent of all these fluids. Approximately 36% of an adult's body fluids and 47% of and infant's body fluids are extracellular.

extravascular fluid

Interstitial fluid.

follicular fluid

The liquid rich in heparin sulfate, hyaluronic acid, anti-müullerian hormone, defensins, and other chemicals that surrounds developing oocytes as they mature in the ovary.

gingival fluid

Gingival sulcular fluid.

gingival sulcular fluid

Abbreviation: GSF
In dentistry, the fluid that seeps through the gingival epithelium. It increases with gingival inflammation. Cellular elements within GSF include bacteria, desquamated epithelial cells, and leukocytes. Electrolytes and some organic compounds are also present. Synonym: crevicular fluid; gingival fluid

interstitial fluid

Water and dissolved substances inside tissues but outside of cells and vessels. Interstitial fluid is largely the ultrafiltrate of arterial blood, having been pushed through capillary walls by hydrostatic force; therefore it has a salt concentration similar to blood serum. Normally, approximately 29% of an adult's body fluids and 40% of an infant's body fluids are interstitial fluids. Excess interstitial fluid is returned to the circulation by the lymphatics. An accumulation of excess interstitial fluid is called edema. Synonym: extravascular fluid

intracellular fluid

Abbreviation: ICF
The potassium-rich, sodium-poor watery solution inside cells. Approx. 55 to75% of total body water is intracellular.

intraocular fluid

Fluid within the anterior and posterior chambers of the eye. Synonym: aqueous humor

intravascular fluid

That portion of the total body fluid contained within blood and lymphatic vessels.

peritoneal fluid

The clear straw-colored serous fluid secreted by the cells of the peritoneum. The few milliliters present in the peritoneal cavity moisten the surfaces of the two peritoneal layers and allow them to glide over each other as the intestinal tract changes shape during the process of digestion and absorption. In certain disease states (such as right-sided heart failure, cirrhosis, or ovarian malignancy) the amount of peritoneal fluid is increased. See: ascites

pleural fluid

Fluid secreted by serous membranes in the pleurae that reduces friction during respiratory movements of the lungs. When excessive pleural fluid is secreted and not absorbed, a pleural effusion accumulates.

Scarpa fluid

See: Scarpa, Antonio

seminal fluid

Semen.

serous fluid

Fluid secreted by serous membranes that reduces friction in the serous cavities (pleural, pericardial, and peritoneal).

spinal fluid

Cerebrospinal fluid

synovial fluid

Clear viscid lubricating fluid of the joint, bursae, and tendon sheaths, secreted by the synovial membrane of a joint. It contains mucin, albumin, fat, and electrolytes. Synonym: synovia See: synovial joint

transcellular fluid

The extracellular fluid that lubricates the potential spaces of the body, such as the pleura and pericardium.

Zenker fluid

See: Zenker, Friedrich Albert von

flu·id

(flū'id) A nonsolid substance (i.e., liquid or gas) that tends to flow or conform to the shape of the container in which it is kept. [L. fluidus, fr. fluo, to flow]

Patient discussion about fluid

Q. What causes fluid to leak from the legs? A. It may be caused by chronic venous insufficiency - when the veins of your leg are not competent enough to drain the blood from the legs. It causes accumulation of blood in your legs, and the elevated pressure of the blood causes the water in the blood to leak out of the blood vessels.
You may read more here: www.nlm.nih.gov/medlineplus/ency/article/000203.htm

More discussions about fluid

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flu·id

fluid

flu•id

flu·id

fluid

fluid

fluid

fluid

fluid

gender fluid

embalming fluid

embalming fluid

fluid

fluid,

fluid

fluid

fluid

flu·id

fluid

flu·id

fluid

allantoic fluid

amniotic fluid

ascitic fluid

body fluid

Bouin fluid

cerebrospinal fluid

Formation

Characteristics

Microorganisms

crevicular fluid

extracellular fluid

extravascular fluid

follicular fluid

gingival fluid

gingival sulcular fluid

interstitial fluid

intracellular fluid

intraocular fluid

intravascular fluid

peritoneal fluid

pleural fluid

Scarpa fluid

seminal fluid

serous fluid

spinal fluid

synovial fluid

transcellular fluid

Zenker fluid

flu·id

Patient discussion about fluid

FLUID

fluid

Synonyms for fluid

noun liquid

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adj flowing

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adj changeable

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Antonyms

adj liquid

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Synonyms for fluid

adj changing easily, as in expression

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adj marked by facility, especially of expression

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adj capable of or liable to change

Synonyms

Synonyms for fluid

noun a substance that is fluid at room temperature and pressure

Related Words

noun continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas

Related Words

adj subject to change

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