perpendicularly

/ˌpɜrpənˈdɪkjələrli/
adverb
  1. In a way that forms an angle of 90 degrees; at a right angle to a given line or surface.
    • The ladder stood perpendicularly against the wall.
    • The two roads intersect perpendicularly at the town square.
    • She cut the fabric perpendicularly to create a clean edge.
Antonyms
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