measles

(mēˈzəlz)

1. a. An acute, contagious viral disease, usually occurring in childhood and characterized by eruption of red spots on the skin, fever, and catarrhal symptoms. Also called rubeola.
   b. Black measles.
   c. Any of several other diseases, especially German measles, that cause similar but milder symptoms.
2. A disease of cattle and swine caused by tapeworm larvae.
3. A plant disease, usually caused by fungi, that produces minute spots on leaves and stems.