milligal: meaning, definition, pronunciation and examples
Very Rare / SpecializedTechnical / Scientific
Quick answer
What does “milligal” mean?
A unit of acceleration equal to one thousandth of a gal (1 cm/s²), used primarily in geophysics and gravity measurement.
Audio
Pronunciation
Definition
Meaning and Definition
A unit of acceleration equal to one thousandth of a gal (1 cm/s²), used primarily in geophysics and gravity measurement.
A precise, technical measurement for variations in gravitational pull, such as those caused by geological structures, density variations, or tidal forces.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences; usage is identical across both regional varieties within the scientific community.
Connotations
Purely technical and quantitative; carries no additional cultural or social connotations.
Frequency
Virtually unused outside highly specialized geophysical contexts in both regions.
Grammar
How to Use “milligal” in a Sentence
[Number] + milligal(s) + [of + gravity/anomaly]an anomaly/anomalies of + [Number] + milligal(s)Vocabulary
Collocations
Examples
Examples of “milligal” in a Sentence
adjective
British English
- The milligal readings were consistent across the survey grid.
- A milligal-level precision is required.
American English
- The milligal data revealed a subtle density contrast.
- We need milligal accuracy for this model.
Usage
Meaning in Context
Business
Not used.
Academic
Used in geophysics, geology, and geodesy papers and textbooks to quantify gravity anomalies.
Everyday
Never used.
Technical
The primary domain; used in reports from gravity surveys, borehole gravity measurements, and satellite gravimetry.
Vocabulary
Synonyms of “milligal”
Strong
Neutral
Weak
Vocabulary
Antonyms of “milligal”
Watch out
Common Mistakes When Using “milligal”
- Pronouncing 'gal' as in 'girl' (should be /ɡal/ or /ɡæl/).
- Confusing it with 'milligram'.
- Using it in non-scientific contexts.
- Incorrect pluralization (milligals is standard).
FAQ
Frequently Asked Questions
No, it is a derived unit of the older CGS (centimetre–gram–second) system, where 1 Gal = 1 cm/s². 1 milligal = 0.001 Gal = 10 μm/s².
Local gravity anomalies caused by geological structures. For example, a buried ore body might cause an anomaly of 0.5 to 10 milligals.
No, it is a highly specialized technical term. Using it outside of geophysical contexts would likely cause confusion.
Standard gravity (g) is approximately 980.665 Gal. Therefore, 1 milligal is about one millionth of g (1/980,665 g), an extremely small fraction.
A unit of acceleration equal to one thousandth of a gal (1 cm/s²), used primarily in geophysics and gravity measurement.
Milligal is usually technical / scientific in register.
Milligal: in British English it is pronounced /ˈmɪlɪɡal/, and in American English it is pronounced /ˈmɪləˌɡæl/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No established idioms for this term]”
Learning
Memory Aids
Mnemonic
Think: a MILLIonth part of Earth's gravity isn't accurate, but a MILLI-gal is a MILLIth of a 'Gal' (from Galileo), used to measure tiny gravity changes.
Conceptual Metaphor
MEASUREMENT IS PRECISION (The term conceptualizes extremely small gravitational forces as a precise, quantifiable entity).
Practice
Quiz
In which field is the unit 'milligal' primarily used?