A pneumatic or air-powered self-operating system or device.
From 'auto-' (self) and 'pneum-' (relating to air or breath, from Greek 'pneuma'). This is an extremely technical and rarely used term.
Autompne is so specialized it barely exists in modern usage—it would describe self-operating air-pressure systems found in old industrial machinery or pneumatic automation, a relic of early industrial engineering.
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