directionality

Noun directionality has 2 senses

• directionality(n = noun.attribute) directivity - the property of a microphone or antenna of being more sensitive in one direction than in another; "the antenna received signals with no directivity"
is a kind of radial asymmetry
Derived form adjective directional₁

• directionality(n = noun.attribute) Array - the property of being directional or maintaining a direction; "the directionality of written English is from left to right"
is a kind of spatial property, spatiality