A device that creates a current of air, or British slang for a telephone.
From Middle English blowere, from the verb 'blow' (Old English blāwan) plus the agent suffix -er. The telephone meaning emerged in early 20th century British slang, from the idea of 'blowing' words through the device.
The slang use of 'blower' for telephone reveals how people conceptualized this new technology—as a device you literally blew words into. This metaphor was so strong that early phone etiquette guides actually advised speaking 'into' the mouthpiece rather than 'at' it, as if breathing life into your words.
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