/fleks ||; flɛks/(especially US 尤为美 cord) noun [C,U] (a piece of) wire inside a plastic tube, used for carrying electricity to electrical equipment 花线，软线，导线（用塑料套着的一种电线） ☞picture at cable 见cable插图 At the end of a flex there is a plug which you fit into a socket or a power point. 花线的末端有插头(plug)，插在插座(socket／power point)上就可以通电。