From HomoExcelsior

1. Intersecting at or forming right angles. 2. vertical 3. Of or relating to a style of English Gothic architecture of the 14th and 15th centuries, characterized by emphasis of the vertical element. 4. A line or plane perpendicular to a given line or plane. 5. A perpendicular position. 6. A device, such as a plumb line, used in marking the vertical from a given point. 7. A vertical or nearly vertical line or plane.

---