Arcsecond — synonyms, definition
1. arcsecond (Noun)
2 synonyms
arcsec second
1 definition
arcsecond (Noun) — A 60th part of a minute of arc.
ex. "the treasure is 2 minutes and 45 arcseconds south of here"
1 type of
angular unit
3 parts of
arcminute minute minute of arc