Shirabe
秒角

秒びょう

Common Noun
English jmdict
1
noun (common) (futsuumeishi) second (unit of time)
私の時計は１日に５秒進みます。
My watch gains five seconds a day.
2
noun (common) (futsuumeishi) arc second
See also: 秒角 (びょうかく)
English jmdict
1
noun (common) (futsuumeishi) arc second;arcsecond;second of arc