trillionth

noun

"
plural trillionths
-yən(t)s
-yən(t)ths
1
: number one trillion in a countable series
2
: the quotient of a unit divided by one trillion : one of a trillion equal parts of anything
3
: a minute part

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Cite this Entry

“Trillionth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trillionth. Accessed 10 Jun. 2026.

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