Search Result for "orthogonality": 
Wordnet 3.0

NOUN (2)

1. the relation of opposition between things at right angles;
[syn: orthogonality, perpendicularity, orthogonal opposition]

2. the quality of lying or intersecting at right angles; 



WordNet (r) 3.0 (2006):

orthogonality
    n 1: the relation of opposition between things at right angles
         [syn: orthogonality, perpendicularity, orthogonal
         opposition]
    2: the quality of lying or intersecting at right angles