acous-, acou-, acouo-, acoustico-, acouto-, acousti-, -acousia, -acousis, -acoustical, acu-, -acusis-, -acusia +

Partial loss of hearing.

1. A specialist in acoustics.
2. Someone who fits hard-of-hearing people with hearing aids.

A microscope in which the object being studied is scanned with sound waves and its image is reconstructed with light waves.

Relating to both the eighth (auditory) and seventh (facial) cranial nerves.

A motor response to sound.

An instrument for helping the hearing impaired to hear.

Relating to both the acoustic part of the eighth cranial nerve and the eyelids.

The orbicularis oculi muscle, which closes the eyelids, is innervated by the seventh (facial) nerve.

An abnormal fear of hearing noises in general or specific noises or sounds. This phobia goes beyond just being startled by sudden loud noises. Some people fear specific noises, such as whistling, balloons popping, or sonic booms.

1. The science of sound and the phenomena of hearing.
2. In physics, the science and study of sound, including its production, transmission, and effects.
3. In architecture: a. The sum of the qualities, as absence of echo or reverberation, that determine the value of a room, enclosure, or auditorium with respect to distinct hearing. b. The science of planning and building an enclosure so that sound will be perfectly transmitted within it.
4. In psychology: the part of psychology dealing with hearing.

Acoustics is usually construed as a singular noun, except in the sense with reference to the science of sound qualities for buildings as in "3.a" above.

A special article about acoustics.

A portable electronic device for measuring noise levels, especially those of traffic.

In electronics, the generation of a DC voltage in a crystal or in a metallic material, due to acoustic waves traveling along the surface of the material.

The use of acoustic energy to create electromagnetic waves, usually with crystals or metals that react when bombarded with acoustic waves, and the processing of such waves prior to reproduction of the original sound.

The graphic tracing of the curves, delineated in frequencies per second and decibel levels, of sounds produced by motion of a joint.

Applied to the knee joint, an acoustogram will show the sound of the moving semilunar cartilages, the moving contact between the articular surfaces of the femur and tibia, and the circulation of the synovia.

The science and technology of the interactions between sound waves and light waves passing through solid materials, especially as applied to the modulation and deflection of laser beams by ultrasonic waves; important in laser and holographic technologies.

An instrument for measuring the level of sounds.