Audiogram – hearing test.

Audiometer – the instrument that is used for hearing tests.

ABR or BERA (Auditory Brainstem Response or Brainstem Evoked Response) – A computer assisted technology for analysis of accumulated responses to sound "clicks" presented to the tested ear. The curve shows waves that fit the passage of the stimulus via the auditory nerve and the brainstem.

Chronic (Chronic Tinnitus, Chronic Vertigo, Chronic Dizziness) – A medical condition such as Tinnitus or frequent attacks of Vertigo that lasts 6 months or more.

Cochlear Implant – an electronic transducer that can convert sound waves to electrical activity and fits the size and electrical activity of the cochlea of the inner ear.

CT-Scan – Computerized Tomography: when the computerized pictures of the "slices" are based on x-rays.

Dizziness – A sensation of temporary imbalance without spinning. Usually the duration is short: a range of few seconds to few minutes. The patient is afraid of falling on the floor or ground, but usually he succeeds to prevent falling.

EEG – Electro Encephalography: Test for the electrical activity of the brain as can be monitored by electrodes that are applied to the skin of the head.

ENG – objective test that is can demonstrate pathology in the vestibular system. The electrical activity of the muscles of the eyes are monitored by electrodes, and the test performer is inserting cold or hot water to the external ear of the patient. This procedure is called "caloric stimulation". A response of nystagmus follows the caloric stimulation and have patterns of normal response or pathological response.

Floaters – Inability of the patient to ignore small particles that are floating inside the Vitreus Body of his eye. These particles really exist there. Many of the patients complain of a sensation of having "flies" in their visual field.

Hyperacusis – An abnormal degree of discomfort or aversion to sounds that would not be regarded as loud by average standards.

Imaging – the term for computerized technology to produce pictures that looks like slices of the body, based on x-rays or magnetic resonance radiation.

Masking – The capacity of one sound to mask perception of another sound. The greater the intensity of the masking sound, the greater its masking effect.

Meniere's Disease – A medical condition with chronic course giving rise to 4 symptoms at least: recurrent episodes of vertigo, tinnitus, hearing loss and sensation of plugged ears. Essential for diagnosis: rule out other medical condition (Tumor, Vascular Disease).

MRI – Magnetic Resonance Imaging: when the computerized pictures of the "slices" are based on electro magnetic energy.

Objective Tinnitus – A Tinnitus sound that can be recorded by a special device, detected by a skilled Physician who is using a special stethoscope. Usually this type of Tinnitus is pulsatile.

Otto Acoustic Emissions (OAE) – an instrument that can send auditory stimulus to the ear and record the sound that is generated by the auditory system of the patient.

Posturography – Measuring the relevant paramenters while a patient or a non sufferer is standing on a plateor on 4 plates that measures the pressure of his legs and delivering them to a computer program. In the staticposturography there are 4 plates that are static, and in the dynamic posturography there is one plate that moves.

Subjective Tinnitus - A Tinnitus sound that can be heard only by the patient or the tinnitus sufferer. Usually this type of Tinnitus is not pulsatile.

Ringing in the Ears – A common non-medical term for "Tinnitus".

Tinnitus – A sensation of sound that is related to the ears, head or the ears and the head. the sound of Tinnitus has no verbal meaning. the Tinnitus can be "Objective" or "Subjective" (See definition of objective tinnitus).

Tinnitus Masker – An electronic device that feeds sound into the ear, and designed to generate Masking sound (See definition of Masking) – a sound that covers the tinnitus.

TRT (Tinnitus Retraining Therapy) – Training the Tinnitus patient to ignore the Tinnitus by focusing his attention at a different sound. The therapists of TRT are using a special electronic device that feeds a Non-Masking sound into the ear of the patient.

Unsteadiness – A sensation that the floor or the earth is unsteady, in spite of the fact that there is no objective basis to that sensation (no earthquake or explosion).

Vertigo – A sensation that the world is spinning, or yourself spinning in relation to the world.