The Collaborative International Dictionary of English v.0.48:

Arillate \Ar"il*late\ Arllated \Ar"l*la`ted\, Ariled \Ar"iled\,
   a. [Cf. NL. arillatus, F. arill['e].]
   Having an aril.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ariled
    adj 1: (of some seeds) having a fleshy and usually brightly
           colored cover [syn: ariled, arillate]