View Synonyms
[ US /ˌɪnfɪnɪˈtɛsɪməɫ/ ]
[ UK /ˈɪnfɪnətˌɛsɪmə‍l/ ]
  1. infinitely or immeasurably small
    reduced to a microscopic scale
    two minute whiplike threads of protoplasm
  1. (mathematics) a variable that has zero as its limit
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How To Use infinitesimal In A Sentence

  • These infinitesimal particles are usually grouped into four main categories: the mesons, the baryons, the leptons, and the photons (the most basic unit of electromagnetic radiation).
  • Twice an infinitesimal is an infinitesimal that is twice as big. The Volokh Conspiracy » “Year of Our Lord”
  • An infinitesimally small step for mankind, maybe, but one ginormous step for this unlucky man.
  • This always struck me as redundant, since if we assume the system obeys the equations of motion, the action must be invariant under ANY infinitesimal variation (since the EOM are found by assuming that the action is at an extremum). Special Post: Noether’s First Theorem – Emmy Noether for Ada Lovelace Day
  • But Clark sees something change in his eyes, some infinitesimal flicker of emotion.
  • What an infinitesimal fraction of time's fathomless abyss is assigned to each of us!
  • But side by side with that history of inflation from the infinitesimal to the immense is another development, the change year by year from the shabby impecuniosity of the Camden Town lodging to the lavish munificence of the Crest Hill marble staircase and my aunt's golden bed, the bed that was facsimiled from Fontainebleau. Tono Bungay
  • I don't have an explanation - I'd like to have one but I don't - but in the meantime, without evidence, the odds of your position being right are so infinitesimal as to be irrelevant.
  • Angeli's many works were on infinitesimals and he used them to study spirals, parabolas and hyperbolas.
  • Ultimately, El Hanani's drawings are meditations on the relationship of the macroscopic to the microscopic, the infinite to the infinitesimal.
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