Crossword clues for arcsecond
arcsecond
Wiktionary
arcsecond
n. A unit of angle; 1/60th of an arcminute, or 1/3600th of a degree.
WordNet
arcsecond
n. a 60th part of a minute of arc; "the treasure is 2 minutes and 45 seconds south of here" [syn: second]