1. designed or treated to absorb sound waves and prevent echoes or reverberation
Usage: technical; commonly used in acoustics and audio engineering
2. free from echoes; producing no reflected sound
Usage: technical; used in physics and underwater acoustics

Examples

• The recording studio was lined with anechoic foam to eliminate unwanted reflections.
• Engineers tested the speaker in an anechoic chamber to measure its true acoustic performance.
• Anechoic tiles on the ceiling help reduce noise in the office space.
• Submarines use anechoic coatings to avoid detection by sonar.
• The anechoic environment allowed researchers to study sound propagation without interference.
• Professional audio engineers prefer anechoic rooms for accurate sound mixing and mastering.