n.[C]

1. 汽笛；警报器
   We heard the wailing of fire-engine sirens.

   我们听到救火车汽笛的尖啸声。

2. 【希神】（大写）塞壬（半人半鸟的女海妖，以歌声吸引水手并使船只遇难）
3. 迷人的女人，妖妇
   It is said that she is a siren.

   据说她是个妖艳女人。

4. 歌声动人的女歌手
5. 【鱼】鳗螈

a.

1. 诱人的，迷人的

n.

1. a device that makes a loud prolonged signal or warning sound.
2. Greek Mythology  each of a number of women or winged creatures whose singing lured unwary sailors on to rocks.
3. a woman who is considered to be alluring but also dangerous in some way.
4. an eel-like American amphibian, typically living in muddy pools. [Family Sirenidae.]