trimmer

nouns

a worker who thins out and trims trees and shrubs

"untouched by the pruner's axe"

pruner, trimmer

is derived from

a machine that trims timber

trimmer

is derived from

is a type of (narrower)

any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks

capacitor having variable capacitance; used for making fine adjustments

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.

trimmer, trimmer joist