millionth

[ mil-yuhnth ]
/ ˈmɪl yənθ /

adjective

coming last in a series of a million.
being one of a million equal parts.

noun

the millionth member of a series.
a millionth part, especially of one (1/1,000,000).

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Origin of millionth

First recorded in 1665–75; million + -th2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for millionth

British Dictionary definitions for millionth

millionth
/ (ˈmɪljənθ) /

noun

  1. one of 1 000 000 approximately equal parts of something
  2. (as modifier)a millionth part
one of 1 000 000 equal divisions of a particular scientific quantityRelated prefix: micro-
the fraction equal to one divided by 1 000 000

adjective

(usually prenominal)
  1. being the ordinal number of 1 000 000 in numbering or counting order, etc
  2. (as noun)the millionth to be manufactured
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012