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infinitesimal

/ˌɪnfɪnɪˈtɛsɪməl/ · 13 letters · 9 distinct letters

  1. noun

    (mathematics) a variable that has zero as its limit

  2. adjective

    infinitely or immeasurably small

    two minute whiplike threads of protoplasm

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infinitesimal: definition, pronunciation and puzzle history · Nectary