electron

/ɪˈlɛktrɑn/

Definitions

1. noun

An elementary particle that carries a negative electric charge and participates in chemical bonding

“The discovery of the electron revolutionized our understanding of the structure of atoms.”

2. noun

A carrier of electric current, especially in a wire or circuit

“The electrons flowing through the wire generated enough heat to melt the insulation.”

3. noun

A small amount of electric charge, especially one that has been released from a charged object

“The electron emitted from the radioactive source was detected using a Geiger counter.”

4. noun

A unit of electric charge, equal to the charge of one proton or the charge of a single electron

“The battery contained a total of 10,000 electrons, which was enough to power the device for several hours.”

5. noun

A particle that is the quantum of electric charge, having a negative charge equal to the positive charge of a proton

“The electron is a fundamental particle in the Standard Model of particle physics.”

Synonyms

  • electric charge carrier
  • negatively charged particle

Antonyms

  • positively charged particle
  • proton