PORTAL, noun In architecture, a little gate, where there are two gates of different dimensions. 1. A little square corner of a room, separated from the rest by a wainscot, and forming a short passage into a room. 2. A kind of arch of joiner's work before a door. 3. A gate; an opening for entrance; as the portals of heaven.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI