Isacoustic is a 10 letter English word.
You can make 314 anagrams from letters in isacoustic (acciiosstu).
First recorded in 1895-1900; is- + acoustic
“isacoustic lines” are curves drawn through places where the sound is heard by the same percentage of observers.
The peculiar form of the isacoustic lines will be evident at a glance.
The isacoustic lines thus show how the audibility of the sound varies throughout the sound area.