acatamathesia a�cat�a�ma�the�si�a (ā-kāt �ə-mə-thē �zē-ə, -zhə)
n.
Loss of the faculty of understanding.

The winner of WOD is Ed.  He came up with this funny definition.

It is a special mat that cause cats to fall almost intantly asleep (like they really need an excuse); sort of like a anesthesia for cats. A CAT MAT THESIA