Words Like ARCSECOND
    
   We have put together a list of words that are similar to ARCSECOND.
    
    
    
        
            1 Alternative Words Similar to arcsecond
   
            
               
            
            
        
       
    
    
        2 definitions of arcsecond
           
        
    1
    
        a 60th part of a minute of arc
    
    
    
 
    2
    
        A unit of angle; 1/60th of an arcminute, or 1/3600th of a degree.