jackhammer

/'dɔæk,hæmə/

Thân thiện

A construction worker operates a jackhammer on the sidewalk.

Definition

1. Noun:
   • A powerful pneumatic tool: A jackhammer is a large, heavy tool, typically powered by compressed air, that delivers repeated, forceful blows. It is used to break up hard materials like concrete, rock, or pavement.

Usage

• A jackhammer is operated by a single person who holds it against the surface to be broken. It is a common tool in construction, demolition, and roadwork.
• It is characterized by its loud noise and strong vibrations.

Examples

• Noun:
  • The construction crew used a jackhammer to break up the old sidewalk.
  • The constant noise from the jackhammer made it difficult to concentrate.

Advanced Usage

• "to jackhammer" (verb, informal): To use a jackhammer; to break something apart with forceful, repeated action, often used metaphorically.
  • The workers will jackhammer the foundation tomorrow.
  • (Figurative) The drummer jackhammered the beat with incredible intensity.

Variants and Related Words

• Pneumatic drill: Another common term for a jackhammer, especially in British English.
• Demolition hammer: A similar, often electric or hydraulic, tool used for breaking.
• Hammer drill: A related power tool that combines a hammering action with rotation for drilling into masonry.

Synonyms

• Pneumatic hammer
• Breaker (as in "concrete breaker")

Related Phrases

• Jackhammer operator: A person whose job is to operate a jackhammer.
  • The jackhammer operator wore protective earplugs and goggles.
• Jackhammer noise: The characteristic loud, percussive sound produced by the tool.
  • The jackhammer noise echoed through the city streets.

Học thuật

Noun

1. a hammer driven by compressed air

Từ đồng nghĩa

• air hammer
• pneumatic hammer