|1.||[ adjective ] relating to or indicating directions in space|
"a directional microphone"
|Related terms:||omnidirectional direction|
|2.||[ adjective ] relating to direction toward a (nonspatial) goal|
"he tried to explain the directional trends of modern science"
|3.||[ adjective ] showing the way by conducting or leading; imposing direction on|
|Synonyms:||directing guiding directive|
"felt his mother's directing arm around him" "the directional role of science on industrial progress"