vt to obstruct with, or as with, a portcullis; to shut; to bar.
2. portcullis ·noun an english coin of the reign of elizabeth, struck for the use of the east india company;
so called from its bearing the figure of a portcullis on the reverse.
3. portcullis ·noun a grating of iron or of timbers pointed with iron, hung over the gateway of a fortress, to be let down to prevent the entrance of an enemy.