Source : Webster's Revised Unabridged Dictionary (1913)

Portcullis \Port*cul"lis\, v. t. [imp. & p. p. {Portcullised};
   p. pr. & vb. n. {Portcullising}.]
   To obstruct with, or as with, a portcullis; to shut; to bar.
   [R.] --Shak.