vertigo

noun
ver*ti*go \ ˈvər-ti-ˌgō \
15th century{ds||1|a|}
  • a sensation of motion in which the individual or the individual's surroundings seem to whirl dizzily
  • a dizzy confused state of mind
  • disordered vertiginous movement as a symptom of disease in lower animals; also : a disease (such as gid) causing this

benign paroxysmal positional vertigo

noun
benign paroxysmal positional vertigo \
1961
  • a condition marked by short, recurrent episodes of vertigo and nystagmus brought about by a change in head position that is caused by the movement of small crystals of calcium carbonate in the inner ear that have become dislodged from the utricle and entered the semicircular canals —abbreviation BPPV, BPV
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