| 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. | |
| 3. | An instrument with which trimming is done. | |
| 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. | |
| 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. |
| Noun | 1. | trimmer - a worker who thins out and trims trees and shrubs; "untouched by the pruner's axe" Synonyms: pruner |
| 2. | trimmer - a machine that trims timber | |
| 3. | trimmer - capacitor having variable capacitance; used for making fine adjustments Synonyms: trimming capacitor | |
| 4. | trimmer - joist that receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc. Synonyms: trimmer joist |