TRIMMER

noun Date: 1555 1. a. one that trims articles, one that stows coal or freight on a ship so as to distribute the weight properly, an instrument or machine with which trimming is done, a circuit element (as a capacitor) used to tune a circuit to a desired frequency, a beam that receives the end of a header in floor framing, a person who modifies a policy, position, or opinion especially out of expediency