The definition of a biennium is a period of two years. Your two-year cell phone contract is an example of a biennium. noun.
Symptoms of vestibular neuritis are characterised by a sudden onset of a constant, intense spinning sensation that is usually disabling and requires bed rest. It is often associated with nausea, vomiting, unsteadiness, imbalance, difficulty with vision and the inability to concentrate.
Vestibular neuritis and labyrinthitis. Vestibular neuritis (or vestibular neuronitis) and labyrinthitis are disorders that result in inflammation of the inner ear and/or the nerve connecting the inner ear to the brain.