trillionth | sense examples, Usage and Definition from wordnet dictionary online

Adjective trillionth has 1 sense

trillionth - the ordinal number of one trillion in counting order
Antonym: cardinal (indirect, via ordinal)

,Noun trillionth has 1 sense

one-trillionth, trillionth - one part in a trillion
--₁ is a kind of common fraction, simple fraction

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