perpendicularity
Standing at ninety
Perpendicularity is the condition of being perpendicular—meeting at a right angle.
The term appears in geometry, architecture, and engineering where precise angles matter: The perpendicularity of the walls was off by two degrees.
More abstractly, perpendicularity can describe any relationship of exact opposition or crossing.
Exactly vertical or true
- uprightVertical or morally sound
- erectVertical in position
- verticalAt right angles groundward
- standingPosition, physical or social
elevation · altitude · plumb-bob · level · true · straight · drop · gravitational
Ninety-degree intersection
- orthogonalAt right angles
- normalConforming to standard
- coordinateArrange for unified action
- axisRotation reference line
plane · bisector · vertex · tangent · transversal · quadrant · abscissa · ordinate
Vertical structural element
- pillarUpright architectural support
- postVertical structural beam
- beamStructural support member
- lintelBeam over an opening
buttress · facade · wall · foundation · corner · square · framing · stud
Point where paths intersect
- crossroadsMeeting of routes
- junctionPoint where things meet
- meetingGathering for discussion
- convergenceProcess of approaching sameness
plumb
Exactly vertical or true
standing · elevation · altitude · plumb-bob · level · true · straight · drop · gravitational
right-angle
Ninety-degree intersection
- orthogonalAt right angles
- normalConforming to standard
- coordinateArrange for unified action
axis · plane · bisector · vertex · tangent · transversal · quadrant · abscissa · ordinate · protractor
column
Vertical structural element
lintel · buttress · facade · wall · foundation · corner · square · framing · stud · joist
crossing
Point where paths intersect
- crossroadsMeeting of routes
- junctionPoint where things meet
- meetingGathering for discussion
- geometry termscircle, line, rectangle, side, square
- tolerancingcircularity, roundness, straightness, parallelism, angularity
- transformationschange, changes, transform, transforms, transformation
- relationsrelation, relationship, equivalence relation, connection, link
- math propertiescommutativity, reflexivity, transitivity, symmetry, closure
perpendicularityparallelism
Matching structural elements
obliqueness · obliquity · collinearity · angularity · skewness