People who use dynamite, especially those who use it to destroy things or commit crimes.
From dynamite (explosive compound invented by Alfred Nobel in 1867) + -er (agent suffix). The word emerged in the late 1800s as dynamite became widely used industrially and criminally.
During the labor movements of the 1890s-1920s, 'dynamiters' became a loaded political term used to describe anarchists and radical activists—the word itself became a weapon in political debate, showing how technical terms can become symbols of fear.
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