arcsecond arcsecant • arcsin · · · Info · Definitions · Synonyms · Characters · · arcsecond · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) a 60th part of a minute of arc. Synonyms: second. Example: "The treasure is 2 minutes and 45 seconds south of here." · · Noun Definition 1 Synonyms · · · second · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073