Acoustic (adjective, “Ah-COOS-tick”)
This is a word that is used to describe properties of sound or hearing. The way sounds behave in a room are the room’s acoustic properties. An organism’s range of hearing is its acoustic range. When the word is the plural “acoustics,” it becomes a noun and can have one of two meanings. It is an area of physics that studies the properties of sound. It is also shorthand for the sound quality of a room or space.
In a sentence
Spiders don’t have eardrums, but they still have an acoustic range — they can sense sound vibrations.
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