The Army suggests that laser, microwave or acoustic weapons are the answer.
There are songs that are straight-up pop records, songs that have a lot of depth, some dance, some acoustic.
Later he would adapt that style in his acoustic playing, and a flatpicking guitar hero was born.
George would take out his lyric book and acoustic guitar and play us the song we would be working on that day.
Can an acoustic jazz trio sound like a loop devised by software developer with OCD?
The acoustic tubes seemed to swell out with the gallop of words.
And how comes it that the disturbance always takes an acoustic form?
It is the most acoustic building possible, as any one may prove by singing in rotation the notes of a chord.
This theatre it may be noted is one of the best for its acoustic properties in London.
In this way the second musical box seems to play and the acoustic effect is perfect.
c.1600, from French acoustique, from Greek akoustikos "pertaining to hearing," from akoustos "heard, audible," verbal adjective from akouein "to hear," probably from copulative prefix a- + koein "to mark, perceive, hear," from PIE *kous- "to hear," perhaps from root *(s)keu- "to notice, observe" (see caveat). Acoustic guitar (as opposed to electric) attested by 1958. Related: Acoustical; acoustically.
acoustic a·cous·tic (ə-kōō'stĭk) or a·cous·ti·cal (-stĭ-kəl)
Of or relating to sound, the sense of hearing, or the perception of sound.