jammer
|jam-mer|
🇺🇸
/ˈdʒæmər/
🇬🇧
/ˈdʒæmə/
one who or that which blocks or interferes
Etymology
'jammer' originates from English, formed by adding the agentive suffix '-er' to the verb 'jam' (English 'jam').
'jammer' was formed in modern English by combining 'jam' + '-er'; 'jam' itself dates from earlier English usage meaning 'to squeeze, press, or block', and the agent suffix '-er' created the noun meaning 'one or that which jams'.
Initially it referred generally to 'one who or that which causes a jam or blockage'; over time it took on specialized senses such as an electronic 'signal jammer' and the informal sense of a musician who 'jams'.
Meanings by Part of Speech
Noun 1
a device that deliberately transmits radio signals to disrupt or block communications (e.g., cellphone or radar jamming).
The army deployed a jammer to block enemy communications during the exercise.
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Noun 2
a person who takes part in an informal musical 'jam'—an improvising musician.
He's a talented jammer who often joins late-night jam sessions at the club.
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Noun 3
a tight-fitting, knee-length swim brief used by competitive swimmers (usually plural 'jammers').
Before the meet he changed into a jammer and warmed up on the blocks.
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Last updated: 2025/11/01 15:00