nanoradian

N1A1N1O1R1A1D2I1A1N1

noun

One billionth (10⁻⁹) of a radian.

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Meanings

nounnanoradian (plural nanoradians)

plural nanoradians

  1. One billionth (10⁻⁹) of a radian.

    The ground-based navigation is expected to achieve an angular precision of 50 nanoradians using very-long-baseline interferometry (VLBI).

    1988, T.K. Peng, J.W. Armstrong, J.C. Breidenthal, F.F. Donivan, N.C. Ham, “Deep space network enhancement for the Galileo mission to Jupiter”, in Acta Astronautica, volume 17, number 3, →DOI, page 321

Origin

From nano- + radian.

Full word history & related roots →
Cite this entry
APA

nanoradian. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/nanoradian

MLA

“nanoradian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nanoradian. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “nanoradian,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/nanoradian.

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