The prevalence of leukoencephalopathy with vanishing white matter is unknown. Although it is a rare disorder, it is believed to be one of the most common inherited diseases that affect the white matter.
Tranquillity (also spelled tranquility) is the quality or state of being tranquil; meaning calmness, serenity, and worry-free.aps have been produced for the whole of England that show the tranquillity score of Ordnance Survey Grid derived 500mx500m squares. The tranquillity rating for these is based on 44 different factors that add to or detract from peopleâs feelings of tranquillity.
Princeton's WordNet(4.67 / 3 votes)Rate this definition: rest, ease, repose, relaxation(noun) freedom from activity (work or strain or responsibility) took his repose by the swimming pool. peace, peacefulness, peace of mind, repose, serenity, heartsease, ataraxis(noun) the absence of mental stress or anxiety.