Definition of: trimmer

(trim′ər) noun
1. One who or that which trims.
2. A time–server.
3. Brit. One who keeps the balance between opposing political parties by throwing his support from one to the other.
4. A small horizontal beam, as in a floor, into which the ends of one or more joists are framed.
5. A tool or machine with which to trim; specifically, a large table with power saw used to trim lumber for buildings.