1. a moveable boom, having a bucketlike attachment at its top that is large enough to carry a worker: used for repairing telephone lines, pruning trees, etc.
  2. a vehicle equipped with such a boom.


  1. a hydraulic crane, esp one mounted on a lorry, that has an elbow joint or telescopic arm supporting a basket-like platform enabling a person to service high power lines or to carry out similar operations above the ground

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