directionality

Definitions of directionality
1

n the property of being directional or maintaining a direction

“the directionality of written English is from left to right”
Type of:
spatial property, spatiality
any property relating to or occupying space

n the property of a microphone or antenna of being more sensitive in one direction than in another

Synonyms:
directivity
Type of:
radial asymmetry
the absence of symmetry about an axis