accessorial

from WordNet (r) 3.0 (2006)
accessorial
    adj 1: nonessential but helpful; "accessorial services included
           sorting and packing"
    
from The Collaborative International Dictionary of English v.0.48
Accessorial \Ac`ces*so"ri*al\, a.
   Of or pertaining to an accessory; as, accessorial agency,
   accessorial guilt.
   [1913 Webster]
    

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