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Trillionth - Meaning, Definition & English Examples

A trillionth is an ordinal number representing one part in a trillion equal divisions. It is used to describe an extremely small fraction or position in a sequence, such as the trillionth digit of pi.

trillionth

/ˈtrɪljənθ/ /ˈtrɪljənθ/

Definition:

One part in a trillion equal parts, or the ordinal number corresponding to a trillion.

Synonyms:

infinitesimal, negligible, minute

Part of Speech:

noun, adjective

Antonyms:

whole, entirety

Common Collocations:

trillionth of a second, trillionth part, trillionth position

Derivatives:

trillionths (plural noun), trillionthly (adverb)

Usage Tips:

Use "trillionth" as an ordinal number or to describe an extremely small fraction in scientific contexts.

Common Phrases:

one in a trillion, not even a trillionth chance, down to the trillionth degree

Etymology:

Derived from "trillion," with the suffix "-th" indicating ordinality or fractional division.

Examples:

  • 1. A grain of sand is roughly a trillionth the size of Earth.
  • 2. The experiment measured time differences down to a trillionth of a second.
  • 3. She finished in the trillionth place in the race—dead last.
  • 4. The odds of winning were less than a trillionth—practically impossible!

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