|adj.||1.||of or pertaining to direction (definition 2).|
|2.||serving to indicate direction.|
|3.||(Radio) transmitting radio signals in a specific direction, or receiving signals only from a narrow angle of directions, thus serving to indicate the direction from which radio signals are coming. Used of antennas; |
|Adj.||1.||directional - relating to or indicating directions in space; "a directional microphone"|
omnidirectional - not directional; "omnidirectional antenna"
|2.||directional - relating to direction toward a (nonspatial) goal; "he tried to explain the directional trends of modern science"|
|3.||directional - showing the way by conducting or leading; imposing direction on; "felt his mother's directing arm around him"; "the directional role of science on industrial progress"|