The condition of being acoustic

(usually in the plural) The properties or qualities of a room or building that determine how sound is transmitted in it. / (medicine) A medicine or other agent to assist hearing.

(physics) The science of sounds, teaching their nature, phenomena and laws.

plural of acoustic

(architecture) (of building materials) Used for soundproofing or modifying sound. / (of a device or system) Utilizing sound energy in its operation.

(manner) In an acoustic manner, or using an acoustic musical instrument. / (domain) From the perspective of acoustics.

Of or pertaining to hearing or acoustics.

plural of acoustic shock

(military) The deliberate radiation or reradiation of mechanical or electroacoustic signals with the objectives of obliterating or obscuring signals that an enemy is attempting to receive and of disrupting enemy weapons systems.

someone who plays, or performs on, the acoustic guitar