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Definition of "infinitesimal" []

  • Immeasurably or incalculably minute. (adjective)
  • Mathematics Capable of having values approaching zero as a limit. (adjective)
  • An immeasurably or incalculably minute amount or quantity. (noun)
  • Mathematics A function or variable continuously approaching zero as a limit. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "infinitesimal" in a sentence
  • "That is the one and only actual meaning of the use of the term infinitesimal by Leibniz."
  • "BTW, "infinitesimal" is an actual word and not made up by Obama."
  • "Twice an infinitesimal is an infinitesimal that is twice as big."