arc-second

A form of arcsecond — A unit of angle; 1/60th of an arcminute, or 1/3600th of a degree.

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Meanings

nounarc-second (plural arc-seconds)

plural arc-seconds

  1. alternativeAlternative form of arcsecond.
Cite this entry
APA

arc-second. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/arc-second

MLA

“arc-second.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arc-second. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “arc-second,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/arc-second.

Source: arc-second on Wiktionary, CC BY-SA 4.0.