relating to or indicating the direction in which someone or something is situated, moving, or developing 方向的;指示方向的 directional signs wherever two paths joined. 两条路交汇处均有方向牌。 ■relating to, influencing, or exemplifying the latest trends in fashion 时尚的 one of London's most directional second-hand shops. 伦敦最时尚的二手货商店之一。
having a particular direction of motion, progression, or orientation 有特定方向的 coiling the wire permits directional flow of the magnetic flux. 缠绕金属线可产生定向流动的磁通量。 ■relating to, denoting, or designed for the projection, transmission, or reception of light, radio, or sound waves in or from a particular direction or directions (光线、无线电波或声波的发射、传播或接收)定向的 a directional microphone. 一只定向的麦克风。