transmissivity: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “transmissivity” mean?
A quantitative measure of the ability of a material or medium to transmit something, especially electromagnetic waves (like light) or fluids.
Audio
Pronunciation
Definition
Meaning and Definition
A quantitative measure of the ability of a material or medium to transmit something, especially electromagnetic waves (like light) or fluids.
In science and engineering, it specifically refers to: 1) (Physics/Hydrology) The rate at which groundwater flows horizontally through an aquifer per unit width under a unit hydraulic gradient. 2) (Optics/Electromagnetics) The effectiveness of a material in transmitting radiant energy, often related to its transparency or conductivity for specific wavelengths.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or spelling. Usage is consistent across scientific communities.
Connotations
Purely technical and neutral in both variants.
Frequency
Equally rare in non-specialist contexts in both regions.
Grammar
How to Use “transmissivity” in a Sentence
[The/An] [material/aquifer/layer] [has/displays/exhibits] a [high/low] transmissivity.Transmissivity [is measured/is calculated/depends on] [property].Vocabulary
Collocations
Examples
Examples of “transmissivity” in a Sentence
verb
British English
- [Not applicable. The verb form is 'transmit.']
American English
- [Not applicable. The verb form is 'transmit.']
adverb
British English
- [Not applicable.]
American English
- [Not applicable.]
adjective
British English
- [Not applicable. The adjectival form is 'transmissive.']
American English
- [Not applicable. The adjectival form is 'transmissive.']
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in geology, hydrology, environmental engineering, physics, and optics papers.
Everyday
Extremely rare outside of specific technical discussions.
Technical
The primary domain. Essential for describing material properties in hydrogeology and electromagnetics.
Vocabulary
Synonyms of “transmissivity”
Strong
Neutral
Weak
Vocabulary
Antonyms of “transmissivity”
Watch out
Common Mistakes When Using “transmissivity”
- Using it as a fancy synonym for 'transmission.'
- Confusing it with 'transmittance' (a related but dimensionless optical property).
- Misspelling as 'transmissitivity' or 'transmissivity.'
FAQ
Frequently Asked Questions
Permeability is an intrinsic property of the porous material alone, indicating its ability to transmit fluid. Transmissivity is a property of the entire aquifer thickness, combining permeability with the thickness of the water-bearing layer. A thick, moderately permeable layer can have the same transmissivity as a thin, highly permeable one.
No. Transparency is a qualitative, visual description. Transmissivity is a quantitative, measurable property (often a coefficient) that specifies how much radiant energy of a specific wavelength passes through a material.
It would sound highly unnatural and technical. In everyday contexts, use words like 'how clear it is,' 'how well it lets light through,' or 'how easily liquid flows through.'
The verb is 'transmit.' Transmissivity is the noun form describing the quality or capacity for transmission (e.g., 'The aquifer transmits water easily' -> 'The aquifer has high transmissivity').
A quantitative measure of the ability of a material or medium to transmit something, especially electromagnetic waves (like light) or fluids.
Transmissivity is usually technical/scientific in register.
Transmissivity: in British English it is pronounced /ˌtrænzmɪˈsɪvɪti/, and in American English it is pronounced /ˌtrænzmɪˈsɪvəti/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms exist for this technical term]”
Learning
Memory Aids
Mnemonic
Think 'transmit' + '-ivity' (like 'activity' or 'productivity') = 'the quality/ability to transmit.'
Conceptual Metaphor
A THROUGHPUT CAPACITY (like the width and efficiency of a pipe for water or a channel for light).
Practice
Quiz
In which field is the term 'transmissivity' MOST precisely and commonly used?