D defs.my
Entry 2 senses · 2 variants Webster, 1913

Millionth

/mĭl'-yənth/ · Mil·lionth · IPA /ˈmɪljənθ/
01 a. Being the last one of a million of units or objects counted in regular order from the first of a series or succession; being one of a million.
  1. 1.
    Being the last one of a million of units or objects counted in regular order from the first of a series or succession; being one of a million.
02 n. The quotient of a unit divided by one million; one of a million equal parts.
  1. 1.
    The quotient of a unit divided by one million; one of a million equal parts.