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.
Signs and Symptoms. Signs of vestibular disease include head tilting, loss of coordination, circling and stumbling, staggering, falling and rolling, as well as involuntary, rhythmic, jerking eye movements from side to side or up and down.