1 Other symptoms of vertigo may include hearing loss and a ringing sensation in the ears, visual disturbances, weakness, difficulty speaking, a decreased level of consciousness, and difficulty walking.  Vertigo is diagnosed by a medical history and physical exam.
A halo is a circle of light that is shown in pictures round the head of a holy figure such as a saint or angel. A halo is a circle of light round a person or thing, or something that looks like a circle of light. The sun had a faint halo round it. She angrily slung a scarf around her head, flattening her halo of hair.
Noun. 1. halon-a compound in which the hydrogen atoms of a hydrocarbon have been replaced by bromine and other halogen atoms; very stable; used in fire extinguishers although it is thought to release bromine that depletes the ozone layer.