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pressure

[presh-er] /ˈprɛʃ ər/
noun
1.
the exertion of force upon a surface by an object, fluid, etc., in contact with it:
the pressure of earth against a wall.
2.
Physics. force per unit area. Symbol: P.
Compare stress (def 6).
3.
Meteorology, atmospheric pressure.
4.
Electricity, electromotive force.
5.
the state of being pressed or compressed.
6.
harassment; oppression:
the pressures of daily life.
7.
a constraining or compelling force or influence:
the social pressures of city life; financial pressure.
8.
urgency, as of affairs or business:
He works well under pressure.
9.
Obsolete. that which is impressed.
verb (used with object), pressured, pressuring.
10.
to force (someone) toward a particular end; influence:
They pressured him into accepting the contract.
11.
Origin
1350-1400
1350-1400; Middle English (noun) < Latin pressūra. See press1, -ure
Related forms
pressureless, adjective
interpressure, adjective
nonpressure, noun, adverb
superpressure, noun, adjective
underpressure, noun
unpressured, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for pressures
  • This pattern reflects the pressures on species in these regions.
  • Plastic bodies are used for relatively low pressures and temperatures.
  • Some abortions are undergone as the result of societal pressures.
  • This is due to population pressures forcing highlanders into the rainforest.
  • This was simply a variable width sheave controlled by spring and hydraulic pressures.
  • Until then, the dancers must match pressures without moving their hands.
British Dictionary definitions for pressures

pressure

/ˈprɛʃə/
noun
1.
the state of pressing or being pressed
2.
the exertion of force by one body on the surface of another
3.
a moral force that compels to bring pressure to bear
4.
an urgent claim or demand or series of urgent claims or demands to work under pressure
5.
a burdensome condition that is hard to bear the pressure of grief
6.
the normal force applied to a unit area of a surface, usually measured in pascals (newtons per square metre), millibars, torr, or atmospheres p, P
verb
8.
(transitive) to constrain or compel, as by the application of moral force
9.
another word for pressurize
Derived Forms
pressureless, adjective
Word Origin
C14: from Late Latin pressūra a pressing, from Latin premere to press
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for pressures
pressure
1382, "act or fact of pressing on the mind or heart," from O.Fr. pressure (12c.), from L. pressura "action of pressing," from pressus, pp. of premere "to press" (see press (v.1)). Literal meaning "act or fact of pressing" in a physical sense is attested from 1601. Scientific sense in physics is from 1660. The verb meaning "to exert pressure on" is attested from 1939, Amer.Eng. Pressure cooker is attested from 1915; fig. sense is from 1958.
Online Etymology Dictionary, © 2010 Douglas Harper
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pressures in Medicine

pressure pres·sure (prěsh'ər)
n.

  1. The act of pressing or condition of being pressed.

  2. A stress or force acting in any direction against resistance.

  3. Force applied uniformly over a surface, measured as force per unit of area.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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pressures in Science
pressure
  (prěsh'ər)   
The force per unit area that one region of a gas, liquid, or solid exerts on another. Pressure is usually measured in Pascal units, atmospheres, or pounds per square inch. ◇ A substance is said to have negative pressure if some other substance exerts more force per unit area on it than vice versa. Its value is simply the negative of the pressure exerted by the other substance.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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pressures in Culture

pressure definition


The force exerted on a given area. (See atmospheric pressure.)

Note: The most familiar measure of pressure is psi (pounds per square inch), used to rate pressure in automobile and bicycle tires.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word of The Day

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Word Value for pressures

11
13
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