1. Pertaining to the sense of hearing
2. Adapted to aid hearing.
3. The science of audible sounds or sounds that are heard.

The inability to write from dictation or from what is heard.

1. Impairment in the understanding of auditory language and communication.

Sounds are heard but they convey no meaning.

2. An impairment in comprehension of the auditory forms of language and communication, including the ability to write from dictation in the presence of normal hearing.

Spontaneous speech, reading, and writing are not affected.

The numerous body organs and structures consisting of the organ of hearing; especially, the various parts of the ear.

A partial loss of hearing or a reduced sensitivity to sounds.

In ultrasonography, a lens used to focus or diverge a sound beam which may be simulated by electronic manipulation of signals.

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

The damage caused to the cochlear structures (parts of the inner ears known as the organs of hearing) by high-intensity sound stimulations and having demonstrable effects on hearing: "Acoustic trauma is sometimes temporary in the initial stages, but it can result in permanent threshold shift with the continued exposure to loud noises."

"To avoid having acoustic trauma, people should wear protective ear plugs or ear-cover protectors to protect against damage to their ears when using loud equipment."

"Everyone should be aware of risks of acoustic traumas that are connected with such activities as shooting guns, using chain saws, lawn mowers, driving motorcycles, or when using snowmobiles."

"Another way of avoiding acoustic trauma is to refrain from listening to loud music for long periods of time."

The eighth cranial nerve, or vestibulocochlear nerve (relating to the vestibule and the cochlea of the ear), which innervates the ear and carries impulses relating to both sound stimuli and balance to the brain.

1. A technique for producing images showing the thermal and elastic variations in the properties of an object
2. A technique for producing images that show variations in an object's thermal and elastic properties.

An electron beam generates ultrasonic waves in the specimen which are detected by a piezoelectric transducer whose output controls the brightness of a spot sweeping a cathode-ray tube in synchronism with the electron beam.

1. Music which is produced or modified by electronic means, often with the aid of a computer.
2. Any music involving electronic processing; for example, recording and editing on tape, and whose reproduction involves the use of loudspeakers.
3. Music consisting of tones originating in electronic sound and noise generators used alone or with electroacoustic methods and sound-recording equipment the sounds of which might resemble those of normal musical instruments.
4. Music created by arranging electronically synthesized sounds into a formal pattern with musical qualities.
5. The electronic generation and processing of audio signals or the electronic processing of natural sound, and the manipulation and arrangement of these signals via tape recorders into a finished musical composition.

A longitudinal compression wave in the ion density of a plasma which can occur at high electron temperatures and low frequencies, and is caused by a combination of ion inertia and electron pressure.

A technology used for automatic identification in which low power microwave radio frequency signals are converted to ultrasonic acoustic signals by a piezoelectric crystalline material in the transponder.

Variations in the reflected signal can be used to provide a unique identity.