Classical Mythology . one of several sea nymphs, part woman and part bird, who lure mariners to destruction by their seductive singing.

a seductively beautiful or charming woman, esp. one who beguiles men

a siren of the silver screen.

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.

an implement of this kind used as a whistle, fog signal, or warning device.

any of several aquatic, eellike salamanders of the family Sirenidae, having permanent external gills, small forelimbs, and no posterior limbs.

of or like a siren.

seductive or tempting, esp. dangerously or harmfully

the siren call of adventure.

to go with the siren sounding, as a fire engine.

to allure in the manner of a siren.

noun

enchantress , femme fatale , temptress , alarm , bell , horn , signal , whistle

adjective

alluring , bewitching , come-hither , enticing , inveigling , inviting , luring , tempting , witching