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pres·sure  (prshr)
a. The act of pressing.
b. The condition of being pressed.
2. The application of continuous force by one body on another that it is touching; compression.
3. Abbr. P Physics Force applied uniformly over a surface, measured as force per unit of area.
4. Meteorology Atmospheric pressure.
5. A compelling or constraining influence, such as a moral force, on the mind or will: pressure to conform; peer-group pressure.
6. Urgent claim or demand: under the pressure of business; doesnt work well under pressure.
7. An oppressive condition of physical, mental, social, or economic distress.
8. A physical sensation produced by compression of a part of the body.
9. Archaic A mark made by application of force or weight; an impression.
tr.v. pres·sured, pres·sur·ing, pres·sures
1. To force, as by overpowering influence or persuasion.
2. To pressurize.
3. To pressure-cook.

[Middle English, from Old French, from Latin pressra, from pressus, past participle of premere, to press; see per-4 in Indo-European roots.]

pressure [ˈprɛʃə]
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. (Physics / General Physics) the normal force applied to a unit area of a surface, usually measured in pascals (newtons per square metre), millibars, torr, or atmospheres. Symbol p, P
7. (Physics / General Physics) short for atmospheric pressure, blood pressure
1. (tr) to constrain or compel, as by the application of moral force
2. another word for pressurize
[from Late Latin pressūra a pressing, from Latin premere to press]
pressureless  adj

pressure  (prshr)
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.

pressure  /prr/  n. 1 [U] application of force against s.t.: Air pressure in the tire keeps it inflated. 2 [U] measurement of that force: The pressure in that tire should be 32 pounds.||He has high blood pressure. 3 [U] atmospheric pressure: A low-pressure front moved into our area, bringing rain. 4 [U] application of influence on s.o., sometimes with the threat of a penalty: The people put pressure on the government to lower taxes or be voted out of office. 5 [C] tension, a feeling of being pushed to do things: The pressure of meeting deadlines in her job causes her to sleep poorly. 6 under pressure: in an atmosphere of tension: Some people perform well under pressure, but I dont.
v. [T] -sured, -suring, -sures to apply pressure to s.o.: Her boss pressured her to finish the report by Friday.

Thesaurus: pressure n. 4 demands | coercion 5 stress, strain.
v. to force, coerce | twist s.o.s arm. pressure

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