perpendicular

Intersecting at or forming right angles.

Being at right angles to the horizontal; vertical. synonym: vertical.

Of or relating to a style of English Gothic architecture of the 1300s and 1400s, characterized by emphasis of the vertical element.

In a perpendicular position.

A line or plane perpendicular to a given line or plane.

A perpendicular position.

A device, such as a plumb line, that is used in marking the vertical from a given point.

A vertical or nearly vertical line or plane.

In ship-building, one of the three conventional lines perpendicular to the line of the keel, used as reference lines from which measurements in the fore-and-aft direction are taken.

Perfectly vertical; at right angles with the plane of the horizon; passing (if extended through the center of the earth; coinciding with the direction of gravity.