What is a monomer?

Life is good. I have basically one free evening each week, and I use it every week doing something. I'm not sure if it's always a good use of time, but I never waste it, because I always do something. I have four midterms this week, one that I'm taking in a few minutes, two tomorrow, and one either Friday or Monday. I forget which. I'm not too worried, it's just Spanish. I bought gas for the first time since leaving Boise last Thursday morning. Not bad, a tank that lasts over a month.