an acute, contagious viral disease, usually of young children, characterized by fever and eruptions; varicella
See chickenpox in American Heritage Dictionary 4
or chicken pox
noun
An acute contagious disease, primarily of children, that is caused by the varicella-zoster virus and characterized by skin eruptions, slight fever, and malaise. Also called varicella.
Origin:
Origin: Perhaps in allusion to the mildness of the disease as contrasted with smallpox