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

Derived forms: arcsecs

Type of: angular unit, circular function, trigonometric function

Part of: arcminute, minute, minute of arc

Encyclopedia: Arcsec