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.
The most common causes of vestibular neuritis and labyrinthitis are viral infections, often resulting from a systemic virus such as influenza (âthe fluâ) or the herpes viruses, which causes chickenpox, shingles and cold sores.