[sahy-ruh
n] 
| 1. | Classical Mythology. one of several sea nymphs, part woman and part bird, who lure mariners to destruction by their seductive singing. |
| 2. | a seductively beautiful or charming woman, esp. one who beguiles men: a siren of the silver screen. |
| 3. | an acoustical instrument for producing musical tones, consisting essentially of a disk pierced with holes arranged equidistantly in a circle, rotated over a jet or stream of compressed air, steam, or the like, so that the stream is alternately interrupted and allowed to pass. |
| 4. | an implement of this kind used as a whistle, fog signal, or warning device. |
| 5. | any of several aquatic, eellike salamanders of the family Sirenidae, having permanent external gills, small forelimbs, and no posterior limbs. |
| 6. | of or like a siren. |
| 7. | seductive or tempting, esp. dangerously or harmfully: the siren call of adventure. |
| 8. | to go with the siren sounding, as a fire engine. |
| 9. | to allure in the manner of a siren. |
n| si·ren (sī'rən) n.
[French sirène, from Old French sereine, Siren, from Late Latin Sīrēna, from Latin Sīrēn, from Greek Seirēn.] |
| Si·ren (sī'rən) n.
[Middle English serein, from Old French sereine; see siren.] |