English dictionary · noun

anode

An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows inwards (and thus, electrons flow outwards). It can have either a positive or a negative voltage with respect to cathode of the same polarized device (depending on whether the device is a load or a source, respectively).

Meaning and definitions

1. An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows inwards (and thus, electrons flow outwards). It can have either a positive or a negative voltage with respect to cathode of the same polarized device (depending on whether the device is a load or a source, respectively).
2. (by extension) The electrode at which chemical oxidation of anions takes place, usually resulting in the erosion of metal from the electrode.
3. The electrode which collects electrons emitted by the cathode in a vacuum tube or gas-filled tube.

Connected roots

• -ody

  song

Explore the word family

These words share a recorded root connection. A shared root is a learning clue; it does not establish every step in a word’s history.

• tragedy

  a play or event dealing with tragic events and an unhappy ending

• melody

  a sequence of single notes that is musically satisfying

• electrode

  The terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit.

• diode

  An electronic device that allows current to flow in one direction only; used chiefly as a rectifier.

• cathode

  An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a positive voltage with respect to anode of the same polarized device (depending on whether the device is a load or a source, respectively).

• triode

  A thermionic valve containing an anode, a cathode, and a control grid; small changes to the charge on the grid control the flow from cathode to anode, which makes amplification possible.

Save this word and practice it →