Here's why it's likely incorrect:
* Similar words: The closest words in meaning would be:
* Expellant (Incorrect): This seems like it should mean something that expels or pushes something out.
* Expellent (Incorrect): This is likely a misspelling of "excellent," meaning very good.
* Expeller (Correct): This word refers to something that forces out liquid or gas, often used in industrial processes.
* Expellant (Possible, but context-dependent): In some technical contexts, particularly in the context of aerospace engineering, "expellant" might be used to describe a substance used to generate thrust, such as a propellant.
If you encountered "expellant" in a text, it's best to double-check the source or the context to determine the intended meaning.