xerophobia - an abnormal fear of dryness and dry places, as deserts
My guess would be a fear of Xerox machines.
xeroma - abnormal dryness of the conjunctiva and cornea of the eyes; may be due to a systemic deficiency of vitamin A
This is actually bad cooking – zero aroma.
xerosis - abnormal dryness of bodily tissues, esp the skin, eyes, or mucous membranes
My definition? A person who has zero neuroses.
This concludes the first half of backwards alphabet day. Come back tomorrow to see why W played hooky!