1. A 60th part of a minute of arc
   "the treasure is 2 minutes and 45 arcsecs south of here";
   - second, arcsecond
    
2. The inverse function of the secant; the angle that has a secant equal to a given number
   "The arcsec of 2 is 60 degrees";
   - arc secant, arcsecant, inverse secant

Derived forms: arcsecs

Type of: angular unit, circular function, trigonometric function

Part of: arcminute, minute, minute of arc

Encyclopedia: Arcsec