elettrovolt

electronvolt

noun eh-let-troh-VOLT Rare

Origin: From electron + volt (after Alessandro Volta, Italian physicist).

Usage Note

Elettrovolt (also written elettronvolt or abbreviated eV) is the unit of energy used in atomic and particle physics, equal to the kinetic energy gained by an electron accelerated through one volt. It is an invariable masculine noun: un elettrovolt, mille elettrovolt. In Italian physics texts the abbreviation eV is standard and preferred over the full form.

Examples

"L'energia del fotone è di pochi elettrovolt."

Natural Translation

The energy of the photon is a few electronvolts.

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