adjective
Definition: Relating to a type of consonant sound that is produced by forcing air through a narrow channel, causing turbulence.
Example: In phonetics, the sound 's' is an example of a fricative.
noun
Definition: A type of consonant sound made by forcing air through a narrow opening in the vocal tract, creating a friction-like sound, such as the sounds 'f' and 's'.
Example: In phonetics, the sounds 'f' and 's' are examples of fricatives.