megaelectron volt
- noun
- /ˌmɛɡəˈɛlɛktrɒn voʊlt/
- Specialized
- One megaelectron volt is equivalent to 1,000,000 electron volts.
Examples
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Particle accelerators can produce beams with energies of several hundred megaelectron volt.
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The energy of the photon was measured at 2 megaelectron volt (MeV).
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In nuclear reactions, the released energy is often given in megaelectron volt.
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What is a megaelectron volt?
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In nuclear reactions, the released energy is often given in megaelectron volt.
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Particle accelerators can produce beams with energies of several hundred megaelectron volt.
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The energy of the photon was measured at 2 megaelectron volt (MeV).
Synonyms
A unit of energy equal to one million electron volts used in physics
Surface Forms
Morphology
megaelectron + volt
The term is a transparent technical composition: 'mega-' is a standard SI prefix meaning one million and 'electron volt' is a compositional unit (energy from an electron moved across one volt). Although domain-specific, the meaning 'one million electron volts' follows regular morphological and scientific naming patterns (often written 'megaelectronvolt' or 'MeV'), so a learner who knows the constituent elements can derive the meaning.
Etymology
Megaelectron volt comes from three parts: mega (meaning 'a million'), electron (a very small charged particle), and volt (a unit that shows the electric 'push' on an electron). So a megaelectron volt is 'a million' times the 'tiny energy' an electron gets from one volt, and that is why scientists use it to say how much energy very small particles have.