Meaning & Definition of word "Anode"
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Anode
ˈan-ˌōd
noun:
- 1. The electrode in an electrochemical cell at which oxidation occurs and electrons are emitted.
- Example: In the electrolysis of water, the oxygen is produced at the anode.
- 2. The positive electrode in a vacuum tube or semiconductor device, where current flows into the device.
- Example: The anode in the diode allows current to flow in only one direction.
- 3. The terminal of a battery or other voltage source that is connected to the positive side of the circuit.
- Example: Make sure to connect the positive wire to the anode of the battery.
Etymology
The word 'anode' derives from the Greek 'anodos', meaning 'way up', from 'ana-' (up) + 'hodos' (way).
Common Phrases and Expressions
sacrificial anode:
A type of anode used to protect other metal surfaces from corrosion.
anode ray:
A stream of positively charged particles produced from the anode.
Related Words
cathode:
The electrode in an electrochemical cell where reduction occurs.
battery:
A device consisting of one or more electrochemical cells that store chemical energy.
Slang Meanings of anode
Meaning: In electrical engineering contexts, sometimes used informally to refer to any positive charging point.
Example Sentence: Just connect the wires to the anode, and you're good to go!