noun
Jammer
JAM
noun
1
A device that blocks or disrupts radio, phone, or other signals by broadcasting interference.
"The prison installed cell phone jammers to stop smuggled devices from working."
2
A musician who takes part in an informal jam session.
"The open mic night drew jammers from all over the city."
How to Use Jammer
Learner’s notesIn plain EnglishA signal-blocking device, or a musician playing in an informal jam session — the meaning depends heavily on context.
Word Forms
Jammers plural, jammers plural
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The prison installed cell phone _____ to stop smuggled devices from working.
Etymology
Built from "jam" plus the agent suffix "-er," originally referring to someone or something that jams or blocks.