The word "ctenocephalus" is a noun that is not commonly used in everyday English. It refers to a specific type of flea, particularly the genus of fleas known scientifically as "Ctenocephalides." These fleas are often associated with pets, especially cats and dogs.
In more advanced discussions, you might use "ctenocephalus" in a sentence when talking about pest control or animal health. For example: - "To effectively treat the ctenocephalus issue in pets, it is important to use both topical treatments and environmental sprays."