nanocentury

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noun

A unit of time equal to one billionth of a century or approximately 3.156 seconds.

Scrabble 16
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Meanings

nounnanocentury (plural nanocenturies)

plural nanocenturies

  1. humorousA unit of time equal to one billionth of a century or approximately 3.156 seconds.

Origin

From nano- (“1 billionth”) + century (“100 years”).

Full word history & related roots →
Cite this entry
APA

nanocentury. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/nanocentury

MLA

“nanocentury.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nanocentury. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “nanocentury,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/nanocentury.

Source: nanocentury on Wiktionary, CC BY-SA 4.0.