megaelectron volt: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “megaelectron volt” mean?
A unit of energy equal to one million electron volts, commonly used in particle physics, nuclear physics, and astrophysics to measure the energy of subatomic particles.
Audio
Pronunciation
Definition
Meaning and Definition
A unit of energy equal to one million electron volts, commonly used in particle physics, nuclear physics, and astrophysics to measure the energy of subatomic particles.
A convenient scale for describing the kinetic energy of particles accelerated in fields or released in nuclear reactions, representing a millionfold increase over the fundamental electron volt unit.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning, spelling, or pronunciation. The abbreviated form 'MeV' is universal.
Connotations
None beyond its strict technical definition.
Frequency
Equally low-frequency in both varieties, confined to specialist contexts.
Grammar
How to Use “megaelectron volt” in a Sentence
[Number] + megaelectron volt(s)energy of + [Number] + megaelectron volt(s)measured in + megaelectron voltsVocabulary
Collocations
Examples
Examples of “megaelectron volt” in a Sentence
adjective
British English
- The detector is sensitive to megaelectron-volt-range protons.
American English
- They studied MeV-range gamma rays.
Usage
Meaning in Context
Business
Not used.
Academic
Used extensively in research papers, textbooks, and lectures in physics, particularly in particle, nuclear, and astrophysics to quantify particle energies and reaction thresholds.
Everyday
Virtually never used.
Technical
The primary context. Used in laboratory reports, technical specifications for accelerators or detectors, and in discussions of radiation therapy or materials science involving ion beams.
Vocabulary
Synonyms of “megaelectron volt”
Strong
Neutral
Watch out
Common Mistakes When Using “megaelectron volt”
- Misspelling as 'mega electronvolt' (open compound) is common but the standard form is either closed ('megaelectronvolt') or hyphenated ('mega-electron-volt').
- Incorrect capitalization: it is not a proper noun (e.g., 'Megaelectron Volt').
- Confusing it with 'megavolt' or 'kiloelectron volt' by orders of magnitude.
FAQ
Frequently Asked Questions
Yes, 'MeV' is the standard abbreviation for megaelectron volt, where 'M' stands for mega (million) and 'eV' stands for electron volt.
It is fundamental to particle physics, nuclear physics, astrophysics, and radiation oncology (medical physics).
One megaelectron volt (1 MeV) is a very small amount of energy, approximately equal to 1.602 × 10^-13 joules.
Yes, when referring to multiple units, it becomes 'megaelectron volts' (e.g., 'energies of 10 and 20 megaelectron volts'). The abbreviation 'MeV' is often used for both singular and plural.
A unit of energy equal to one million electron volts, commonly used in particle physics, nuclear physics, and astrophysics to measure the energy of subatomic particles.
Megaelectron volt is usually technical/scientific in register.
Megaelectron volt: in British English it is pronounced /ˌmɛɡəɪˌlɛktrɒn ˈvəʊlt/, and in American English it is pronounced /ˌmɛɡəɪˌlɛktrɑːn ˈvoʊlt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a MEGA-sized battery (for an electron) that delivers a VOLTage a million times stronger than normal.
Conceptual Metaphor
ENERGY IS A MEASURABLE QUANTITY (expressed in standardized, scalable units).
Practice
Quiz
What is a megaelectron volt (MeV) most commonly used to measure?