n. 1. One who trims, arranges, fits, or ornaments. [ 1913 Webster ] 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. [ 1913 Webster ] Thus Halifax was a trimmer on principle. Macaulay. [ 1913 Webster ] 3. An instrument with which trimming is done. [ 1913 Webster ] 4. (Arch.) 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. [ 1913 Webster ] 5. (Coal Storage) An apparatus used for piling the coal in gradually increasing piles made by building up at the point of the cone or top of the prism. [ Webster 1913 Suppl. ] [ 1913 Webster ] | 