fluid pressure: meaning, definition, pronunciation and examples
C2Technical, formal, sometimes metaphorical
Quick answer
What does “fluid pressure” mean?
The force per unit area exerted by a fluid (liquid or gas) at rest on the walls of its container or on an immersed body.
Audio
Pronunciation
Definition
Meaning and Definition
The force per unit area exerted by a fluid (liquid or gas) at rest on the walls of its container or on an immersed body.
A state of continuous stress or influence, especially from social, political, or economic forces, likened to the physical phenomenon.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences; spelling differences follow standard conventions (e.g., 'behaviour' vs. 'behavior' in related contexts).
Connotations
Identical technical meaning. The metaphorical extension is equally understood but possibly more frequent in American media/political commentary.
Frequency
Higher frequency in technical/academic contexts in both regions. The metaphorical usage is low-frequency in general discourse.
Grammar
How to Use “fluid pressure” in a Sentence
The fluid pressure in/on/of the [system] [verb]An increase/decrease in fluid pressureSubjected to fluid pressureVocabulary
Collocations
Examples
Examples of “fluid pressure” in a Sentence
verb
British English
- The system is designed to fluid-pressure the chamber evenly. (Rare/technical verbing)
American English
- The process fluid-pressures the formation to fracture it. (Rare/technical verbing)
adverb
British English
- The valve reacted fluid-pressure slowly. (Extremely rare/non-standard)
American English
- (No standard adverbial form)
adjective
British English
- The fluid-pressure reading was critical. (Compound adjective)
American English
- We need a fluid-pressure gauge. (Compound adjective)
Usage
Meaning in Context
Business
Rarely used literally. Metaphor: 'The company is under constant fluid pressure from market fluctuations.'
Academic
Common in engineering, physics, geology, and medical texts (e.g., blood pressure as a type of fluid pressure).
Everyday
Very rare in literal sense. Possibly understood in contexts like scuba diving or car mechanics.
Technical
The primary context. Precisely defined in fluid mechanics, civil engineering, and petroleum engineering.
Watch out
Common Mistakes When Using “fluid pressure”
- Using it as a verb (e.g., 'to fluid pressure the system').
- Confusing it with 'air pressure' or 'blood pressure' without specifying the fluid.
- Incorrect pluralisation (*'fluids pressures').
FAQ
Frequently Asked Questions
Water pressure is a specific type of fluid pressure, where the fluid is water. Fluid pressure is the broader term applying to any liquid or gas.
In absolute terms, pressure cannot be negative (below a perfect vacuum). However, gauge pressure—pressure relative to atmospheric pressure—can be negative, often called 'suction' or 'vacuum pressure.'
P = ρgh, where P is pressure, ρ (rho) is fluid density, g is acceleration due to gravity, and h is the depth.
Yes, medically, blood pressure is the fluid pressure exerted by circulating blood upon the walls of blood vessels.
The force per unit area exerted by a fluid (liquid or gas) at rest on the walls of its container or on an immersed body.
Fluid pressure is usually technical, formal, sometimes metaphorical in register.
Fluid pressure: in British English it is pronounced /ˈfluː.ɪd ˈpreʃ.ər/, and in American English it is pronounced /ˈfluː.ɪd ˈpreʃ.ɚ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Under fluid pressure (metaphorical)”
Learning
Memory Aids
Mnemonic
Imagine a water balloon: the push you feel from the water against the rubber is the FLUID PRESSURE. FLUID = can flow, PRESSURE = push per area.
Conceptual Metaphor
SOCIAL/FINANCIAL FORCES ARE FLUID PRESSURES (e.g., 'pressure from stakeholders', 'market pressures').
Practice
Quiz
Which of the following is the best definition of 'fluid pressure' in physics?