trimmer

Noun

• 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.

• capacitor having variable capacitance; used for making fine adjustments

• a machine that trims timber

• a worker who thins out and trims trees and shrubs
  • untouched by the pruner's axe
    

Related words

• Synonyms: 
  trimmer joist , trimming capacitor , pruner