any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner | any clever maneuver |
electronic equipment that detects the presence of radio signals or radioactivity | an instrumentality invented for a particular purpose |
rectifier that extracts modulation from a radio carrier wave | an emblematic design (especially in heraldry) |
| any ornamental pattern or design (as in embroidery) |
| something in an artistic work designed to achieve a particular effect |