1. devices that reduce or eliminate unwanted noise, signals, or effects
Usage: technical
2. people or things that prevent something from being expressed, published, or made known
3. substances or mechanisms that inhibit biological processes or immune responses
Usage: medical; scientific

Examples

• The car’s noise suppressors helped reduce engine sound.
• Government suppressors prevented the news from reaching the public.
• Audio suppressors are used to eliminate feedback in sound systems.
• The regime used various suppressors to control free speech.
• Immune suppressors are sometimes prescribed after organ transplants.
• Electronic suppressors filter out unwanted radio interference.
• The suppressors of the protest were heavily criticized.