ˌintə(r)ˌspīˈnalə̇s, -nāl-, -näl- noun
( plural inter·spina·les -a(ˌ)lēz, -ā(ˌ)lēz, -äˌlās)
Etymology: New Latin, from inter- + Late Latin spinalis spinal — more at spinal
: any of various short muscles connecting the spinous processes of contiguous vertebrae