one-hundred-millionth

From one hundred million +‎ -th.

one-hundred-millionth (not comparable)

1. The ordinal form of the number one hundred million.

   Synonym: hundred-millionth

one-hundred-millionth (plural one-hundred-millionths)

1. One of one hundred million equal parts of a whole.

   Synonym: hundred-millionth

   • 1976 February 2, Barry Commoner, “Energy-1”, in The New Yorker‎^[1], New York, N.Y.: Condé Nast Publications, →ISSN, →OCLC, archived from the original on 17 November 2025:

     In “The Anatomy of Science,” published in 1926, Gilbert N. Lewis, a brilliantly iconoclastic chemist, who liked to be accurate about such things, computed the actual probability that an object weighing one one-hundred-millionth of a gram, if looked at once a second, will ever be found one ten-millionth of a centimetre above a supporting surface.

   • 1989 February 11, Edmund L. Andrews, “atents; Developing Machinery the Size of a Molecule”, in The New York Times‎^[2], New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 25 May 2015:

     The invention consists of a thin film covered with regularly spaced holes measuring about 100 angstroms in diameter, or about one one-hundred millionth of a meter.

   • 1996 October 13, Robert Lee Hotz, “Deciphering the Miracles of the Mind”, in Los Angeles Times‎^[3], Los Angeles, Calif.: Los Angeles Times Communications, →ISSN, →OCLC, archived from the original on 17 November 2025:

     Processing speed of a silicon chip: one-hundred-millionth of a second