siren

(noun) a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived. Synonyms: Siren. Example: "Odysseus ordered his crew to plug their ears so they would not hear the siren's fatal song."

(noun) a woman who is considered to be dangerously seductive. Synonyms: enchantress, temptress, Delilah, femme fatale.

(noun) a warning signal that is a loud wailing sound.

(noun) an acoustic device producing a loud often wailing sound as a signal or warning.

(noun) eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills.