Bocardo

1. n. A prison; — originally the name of the old north gate in Oxford, which was used as a prison.
2. n. A form of syllogism of which the first and third propositions are particular negatives, and the middle term a universal affirmative.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.