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perpetuüm mobile

From Wiktionary, the free dictionary

Dutch

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Alternative forms

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Etymology

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Learned borrowing from New Latin perpetuum mōbile, neuter substantive from the Latin adjectives perpetuus (perpetual) + mōbilis (mobile, moving), having the literal sense “perpetual mover”.

Pronunciation

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  • IPA(key): /pɛrˈpeːtu.um ˈmoːbileː/
  • Audio:(file)
  • Hyphenation: per‧pe‧tu‧um mo‧bi‧le

Noun

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perpetuüm mobile n (plural perpetua mobilia or perpetuüm mobile’s)

  1. perpetual motion machine, perpetuum mobile (hypothetical contraption capable of remaining in perpetual motion without ever needing any additional energy)
  2. (figuratively) an impossible thing, a figment of one’s imagination

Further reading

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