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.
tranÂ·quilÂ·izÂ·er. n. 1. One that serves to tranquilize, as soothing music. 2. Any of various drugs used to reduce tension or anxiety; an antianxiety agent. 3. Any of various drugs used to treat psychotic states; an antipsychotic drug. Not in scientific use.ntipsychotic, antipsychotic agent, antipsychotic drug, major tranquilizer, major tranquilliser, major tranquillizer, neuroleptic, neuroleptic agent, neuroleptic drug-tranquilizer used to treat psychotic conditions when a calming effect is desired.