perpendicularity vs orthogonality

perpendicularity and orthogonality both are nouns.

Word	Noun	Adjective	Verb	Adverb
perpendicularity	Yes	No	No	No
orthogonality	Yes	No	No	No

As nouns, perpendicularity and orthogonality are synonyms defined as:

perpendicularity and orthogonality: the relation of opposition between things at right angles

Other synonyms of perpendicularity include orthogonal opposition.

perpendicularity (noun)	orthogonality (noun)
the quality of being at right angles to a given line or plane (especially the plane of the horizon)	the quality of lying or intersecting at right angles
the relation of opposition between things at right angles	the relation of opposition between things at right angles