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.
Symptoms of supraventricular tachycardia include: A racing or fluttering feeling in the chest (palpitations). Chest discomfort (pressure, tightness, pain). Lightheadedness or dizziness. Fainting (syncope). Shortness of breath.