Dictionary

Part of speech: noun (n.)

1. One who trims, arranges, fits, or ornaments.

2. One who does not adopt extreme opinions in politics, or the like; one who fluctuates between parties, so as to appear to favor each; a timeserver. Thus Halifax was a trimmer on principle. Macaulay.

3. An instrument with which trimming is done.

4. A beam, into which are framed the ends of headers in floor framing, as when a hole is to be left for stairs, or to avoid bringing joists near chimneys, and the like. See Illust. of Header.