arcsecond

== English == === Etymology === From arc +‎ second. === Pronunciation === === Noun === arcsecond (plural arcseconds) A unit of angle; 1/60th of an arcminute, or 1/3600th of a degree. ==== Synonyms ==== second of arc as (symbol) arcsec (abbreviation) ==== Derived terms ==== ==== Related terms ==== arcminute ==== Translations ==== === Anagrams === decacorns