perpetrator
— Noun
– English
～ someone who perpetrates wrongdoing
perpetual motion machine
— Noun
– English
～ a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy
perpetual motion
— Noun
– English
～ motion that continues indefinitely without any external source of energy; impossible in practice because of friction
perpetual calendar
— Noun
– English
～ a chart or mechanical device that indicates the days of the week corresponding to any given date over a long period of years
perpetual
— Adjective
– English
～ uninterrupted in time and indefinitely long continuing; "the ceaseless thunder of surf"; "in constant pain"; "night and day we live with the incessant noise of the city"; "the never-ending search for happiness"; "the perpetual struggle to maintain standards in a democracy"; "man's unceasing warfare with drought and isolation"; "unremitting demands of hunger"
perpetual
— Adjective
– English
～ continuing forever or indefinitely; "the ageless themes of love and revenge"; "eternal truths"; "life everlasting"; "hell's perpetual fires"; "the unending bliss of heaven"
perpetually
— Adverb
– English
～ without interruption; "the world is constantly changing"
perpetually
— Adverb
– English
～ everlastingly; for all time; "rays...streaming perpetually from the sun"- Stuart Chase
perpetuate
— Verb
– English
～ cause to continue or prevail; "perpetuate a myth"
perpetuation
— Noun
– English
～ the act of prolonging something; "there was an indefinite prolongation of the peace talks"
perpetuity
— Noun
– English
～ the property of being perpetual (seemingly ceaseless)
perpetuum mobile
— Noun
– Danish
～ hurtigt, uafbrudt strømmende musikstykke med mekan ...
perpetuum mobile
— Noun
– Danish
～ (tænkt) maskine der efter at være blevet sat i gan ...
perphenazine
— Noun
– English
～ tranquilizer and antidepressant (trade name Triavil) sometimes used as an antiemetic for adults
perplex
— Verb
– English
～ be a mystery or bewildering to; "This beats me!"; "Got me--I don't know the answer!"; "a vexing problem"; "This question really stuck me"
perplex
— Verb
– English
～ make more complicated; "There was a new development that complicated the matter"
perplexed
— Adjective
– English
～ full of difficulty or confusion or bewilderment; "perplexed language"; "perplexed state of the world"
perplexedly
— Adverb
– English
～ in a perplexed manner; "he looked at his professor perplexedly"
perplexing
— Adjective
– English
～ lacking clarity of meaning; causing confusion or perplexity; "sent confusing signals to Iraq"; "perplexing to someone who knew nothing about it"; "a puzzling statement"
perplexity
— Noun
– English
～ trouble or confusion resulting from complexity