Word: Thermionic Vacuum Tube
Part of Speech: Noun
Definition:
A thermionic vacuum tube is an electronic device that helps control electric current. It has a special structure with electrodes (which are parts that conduct electricity) and is placed inside a sealed glass or metal container, where all the air has been removed (this is called a vacuum).
Usage Instructions:
You can use the term "thermionic vacuum tube" when talking about older electronic devices or technologies, especially in the context of radios, televisions, and early computers.
It is a technical term, so it is mostly used in discussions about electronics, physics, or engineering.
Example:
Advanced Usage:
In scientific discussions, you might say, "The thermionic vacuum tube operates by heating a filament, which releases electrons into the vacuum, allowing current to flow between the electrodes."
Word Variants:
Thermionic (adjective): Relating to the emission of electrons from a heated surface.
Vacuum Tube: A more common term that refers to the same device but without the "thermionic" part; it’s often used interchangeably.
Different Meanings:
Synonyms:
Idioms and Phrasal Verbs:
Summary:
A thermionic vacuum tube is an important component in older technology used for amplifying signals and controlling electric current.