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perpetual motion

Noun CEFR B2

Definitions

The motion of some hypothetical device that continues forever with no external input of energy, in violation of the laws of thermodynamics.

uncountable

Equivalents

1 more languages
Ελληνικάαεικίνητο

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

perpetual motion machine perpetual motion machine of the first kind perpetual motion machine of the second kind perpetual pill perpetual revolution perpetual stew

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