Dictionary

ten-millionth en · ADJ

Etymology

From ten million + -th.

Meanings

1. (not-comparable) The ordinal form of the number ten million.

ten-millionth en · NOUN

Etymology

From ten million + -th.

Meanings

1. One of ten million equal parts of a whole.
   • In the first ten-millionths of a second after the Big Bang, the universe was composed of what is known as a quark-gluon plasma, but that immediately condensed into the matter we now know. 2012 June 27, Thomas H. Maugh II, “Physicists produce highest man-made temperature: 7 trillion degrees”, in Los Angeles Times, Los Angeles, Calif.: Los Angeles Times Communications, →ISSN, →OCLC, archived from the original on 09 Jan 2020:
   • The average size of the pores in this barrier was about four ten-millionths of an inch, that is to say, .0000004 inches. 1945 December 23, “Topics of The Times; Crucial Decimal Points”, in The New York Times, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 17 Nov 2025:
   • It [the metre] was originally deemed to be one ten-millionth of the distance from the equator to the north pole, before being replaced by a platinum bar held in Paris. 2018 November 3, Robin McKie, “The future of the kilo: a weighty matter”, in The Observer, London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 03 Nov 2018:

Forms

Synonyms

croreth