Portcullis
Port`cul´lis
| n. | 1. | (Fort.) 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. |
| 2. | 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. | |
| v. t. | 1. | To obstruct with, or as with, a portcullis; to shut; to bar. |
| Noun | 1. |  portcullis - gate consisting of an iron or wooden grating that hangs in the entry to a castle or fortified town; can be lowered to prevent passage |