definition of
[siren]

[1] #1 siren n. [Siren] a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived; "Odysseus ordered his crew to plug their ears so they would not hear the Siren's fatal song". wn

[2] #2 siren n. [enchantress, temptress, Delilah, femme fatale] a woman who is considered to be dangerously seductive. wn

[3] #3 siren n. a warning signal that is a loud wailing sound. wn

[4] #4 siren n. an acoustic device producing a loud often wailing sound as a signal or warning. wn

[5] #5 siren n. eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills. wn