metre-kilogram-second: meaning, definition, pronunciation and examples
Low/Very SpecialisedHighly Technical/Scientific/Historical
Quick answer
What does “metre-kilogram-second” mean?
A system of physical measurement using the metre, kilogram, and second as the fundamental units of length, mass, and time.
Audio
Pronunciation
Definition
Meaning and Definition
A system of physical measurement using the metre, kilogram, and second as the fundamental units of length, mass, and time.
It refers to the specific metric system of units from which larger systems like SI (Système International) evolved, and is the historical basis for modern scientific measurement. It contrasts with systems like the foot-pound-second (FPS) system.
Dialectal Variation
British vs American Usage
Differences
The primary difference is in the spelling of the first unit: 'metre' (UK) vs. 'meter' (US). The concept and usage are identical in technical contexts.
Connotations
None beyond the standard US/UK spelling convention for '-metre/-meter'.
Frequency
Equally low frequency in both varieties, confined to physics, engineering, and metrology texts.
Grammar
How to Use “metre-kilogram-second” in a Sentence
the metre-kilogram-second systembased on metre-kilogram-secondcontrasts with foot-pound-secondVocabulary
Collocations
Examples
Examples of “metre-kilogram-second” in a Sentence
adjective
British English
- The metre-kilogram-second framework is foundational.
- We need to convert these values into metre-kilogram-second units.
American English
- The meter-kilogram-second framework is foundational.
- This formula assumes a meter-kilogram-second system.
Usage
Meaning in Context
Business
Not used.
Academic
Used in physics, engineering, and history of science courses to explain the foundation of the SI system.
Everyday
Never used.
Technical
Used in metrology, standards documentation, and advanced physics to specify a unit system framework.
Vocabulary
Synonyms of “metre-kilogram-second”
Neutral
Weak
Vocabulary
Antonyms of “metre-kilogram-second”
Watch out
Common Mistakes When Using “metre-kilogram-second”
- Misspelling as 'meter-kilogram-second' in UK contexts or 'metre-kilogramme-second' (archaic).
- Confusing it with the modern SI, which has seven base units.
- Using it as a plural adjective (e.g., 'metre-kilogram-seconds units' is incorrect).
FAQ
Frequently Asked Questions
It is a specific, coherent version of the metric system using three base units. The modern metric system (SI) is an expanded version with seven base units.
In physics, the main historical alternative is the cgs (centimetre-gram-second) system. In everyday life, the main alternatives are Imperial or US Customary systems (foot-pound-second).
The kilogram was chosen for historical and practical reasons to have a base unit of mass comparable to everyday masses, avoiding very large or small numerical coefficients in common engineering calculations.
It is used mainly in historical, pedagogical, or comparative contexts. In modern science and industry, the term 'SI units' is standard, which incorporates and extends the MKS system.
A system of physical measurement using the metre, kilogram, and second as the fundamental units of length, mass, and time.
Metre-kilogram-second is usually highly technical/scientific/historical in register.
Metre-kilogram-second: in British English it is pronounced /ˈmiːtə ˈkɪləɡram ˈsɛkənd/, and in American English it is pronounced /ˈmiːtər ˈkɪləɡræm ˈsɛkənd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of the three fundamental building blocks: Measure Length (metre), Weigh Mass (kilogram), Count Time (second).
Conceptual Metaphor
FOUNDATION/BUILDING BLOCKS (The three units are the foundational pillars upon which all other mechanical measurements are built.)
Practice
Quiz
The metre-kilogram-second system is primarily a predecessor to which modern system?