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Anode Meaning: Definition, Examples, and Translations

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anode

[ˈænəʊd ]

Definition

Context #1 | Noun

electrical engineering

An anode is the electrode through which electric current flows into a polarized electrical device. In electrochemical cells, it is typically where oxidation occurs. The anode is essential in various applications such as batteries, electrolysis, and semiconductor technology.

Synonyms

oxidation electrode, positive electrode.

Examples of usage

  • The anode in a battery is where the oxidation reaction happens.
  • During electrolysis, the anode attracts negative ions.
  • In a cathode ray tube, electrons are emitted from the anode.
  • Anodes are critical components in photovoltaic cells.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Science

  • In electrochemistry, the anode is crucial; during oxidation, it allows the release of electrons.
  • While an anode is positive in a galvanic cell, in electrolytic cells, it is negative – showcasing its role in different setups.

Technology

  • Anodes are found in various technology applications, including batteries, solar cells, and cathodic protection systems.
  • Lithium-ion batteries have specialized anodes made from graphite, contributing to their efficiency and longevity.

History

  • The first reliable use of anodes dates back to Michael Faraday's experiments in the 1830s, helping to lay the foundation for modern electromagnetism.
  • The invention of the vacuum tube in the early 1900s utilized anodes, which were pivotal in the development of radio and early computers.

Pop Culture

  • Sci-fi stories often depict advanced technology utilizing anodes to power space crafts, illustrating their importance in futuristic settings.
  • In video games, players often have to manage energy flows involving anodes to keep their virtual worlds running smoothly.

Origin of 'anode'

Main points about word origin

  • The term comes from the Greek word 'anodos', meaning 'way up', as it is where electrons flow towards.
  • Initially used in the study of electrolysis, it has roots in early electrical science in the 19th century.

The word 'anode' originates from the Greek term 'anodos', which means 'way up' or 'ascent'. It was first introduced in the context of electrochemistry in the mid-19th century, particularly by the chemist Michael Faraday. The term was chosen to reflect the direction of conventional current flow, which is defined as moving from the anode to the cathode. Throughout the years, the concept of an anode has evolved and expanded, with its application in various technologies such as batteries, diodes, and electroplating, making it a foundational element in electrical engineering.

Word Frequency Rank

Position #9,848 indicates this is an advanced-level word. While not essential for basic communication, it will enhance your ability to understand and create more nuanced content.