chicken pox

Short definition from Wiktionary

Noun

1. 1
   The blisters formed by the varicella zoster virus (VZV).
2. 2
   The highly contagious airborne disease caused by initial infection with varicella zoster virus, typically causing a skin rash that forms small itchy blisters.
3. 3
   Any disease causing similar symptoms.
4. 4
   Alternative form of chicken pox.