turgor pressure
C2Technical/Scientific (Botany, Biology, Medicine)
Definition
Meaning
The pressure exerted by the fluid contents of a plant cell against its cell wall, causing it to be rigid.
More broadly, the state of being swollen or distended due to fluid pressure; in medical contexts, refers to the normal fullness and resilience of healthy skin and tissues.
Linguistics
Semantic Notes
The term is primarily a technical concept in plant physiology and cell biology. It is a key factor in plant support and growth. It is a mass noun and is not used in the plural.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Both use the same term. Potential minor spelling variations in related texts (e.g., 'rigour' vs. 'rigor').
Connotations
Identical scientific connotations in both varieties.
Frequency
Equally rare and specialised in both varieties, used almost exclusively in academic and technical contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [noun, e.g., plant, cell] maintains/has/loses turgor pressure.Turgor pressure is essential for [noun, e.g., rigidity, growth].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[No common idioms. Technical term.]”
Usage
Context Usage
Business
Virtually never used.
Academic
Core term in plant biology, botany, and some medical physiology papers.
Everyday
Extremely rare. Might appear in advanced gardening discussions or health articles about skin elasticity.
Technical
Primary context. Used in laboratory reports, botanical research, and medical assessments of skin and tissue health.
Examples
By Part of Speech
verb
British English
- [No verb form. Related: The plant cells turgidise as water enters.]
American English
- [No verb form. Related: The cells become turgid under pressure.]
adverb
British English
- [No standard adverb form.]
American English
- [No standard adverb form.]
adjective
British English
- The leaf's turgor state was assessed.
- A turgor-related mechanism.
American English
- The turgor pressure reading was high.
- Turgor loss is a sign of stress.
Examples
By CEFR Level
- [Too advanced for A2]
- [Too advanced for B1]
- When a plant wilts, it has lost its turgor pressure.
- Turgor pressure helps young stems stay upright.
- The maintenance of turgor pressure is crucial for non-woody plant support and growth.
- A decrease in soil water potential can lead to a rapid loss of cellular turgor pressure.
Learning
Memory Aids
Mnemonic
Think of a TURGid (swollen) plant stem standing up RIGidly due to internal PRESSURE.
Conceptual Metaphor
A PLANT CELL IS A WATER BALLOON (the internal pressure pushes outwards against the constraining wall).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating 'pressure' as 'давление' in a general sense. The term is a fixed compound. The closest equivalent is 'тургорное давление' or simply 'тургор'.
Common Mistakes
- Using it as a countable noun (e.g., 'a turgor pressure'). It is uncountable. / Confusing it with blood pressure or atmospheric pressure. / Mispronouncing 'turgor' as 'turgid' or with a hard 'g'.
Practice
Quiz
In which of the following contexts is 'turgor pressure' most accurately used?
FAQ
Frequently Asked Questions
No. Osmotic pressure is the tendency of water to move into a cell. Turgor pressure is the resulting outward physical pressure of the cell contents against the wall once water has entered.
Yes, in technical contexts, 'turgor' is often used as a shorthand (e.g., 'the plant's turgor was high').
Not in the same structural sense as plants. The term is sometimes used in medicine to describe the normal tension and resilience of skin and tissues (skin turgor).
Plasmolysis (in plants), where the cell membrane pulls away from the wall, or flaccidity/wilting in the whole plant.