MILLIONTH
millionth
(adjective) the ordinal number of one million in counting order
millionth, one-millionth
(noun) one part in a million equal parts
millionth
(noun) position 1,000,000 in a countable series of things
Source: WordNet® 3.1
Etymology
Adjective
millionth (not comparable)
The ordinal form of the number one million.
Synonyms
• 1,000,000th, 1,000,000th (also written without commas, or, in technical usage with a thin space replacing each comma)
Noun
millionth (plural millionths)
The person or thing in the millionth position.
One of a million equal parts of a whole. Term ppm (parts per million) is also used.
Source: Wiktionary
Mil"lionth, a.
Definition: 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.
Mil"lionth, n.
Definition: The quotient of a unit divided by one million; one of a million
equal parts.
Source: Webster’s Unabridged Dictionary 1913 Edition