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.
Symptomatology Some of the most common symptoms found in vestibular migraine patients include what one would expect with classic migraine such headache pain, photophobia, phonophobia, and gastrointestinal upset (nausea, vomiting, motion sickness).