WordReference Random House Learner's Dictionary of American English © 2017
si•ren /ˈsaɪrən/USA pronunciation   n. [countable]
  1. a seductively beautiful woman.
  2. Physicsa warning device that produces a loud, piercing sound:Sirens wailed and people took shelter.

WordReference Random House Unabridged Dictionary of American English © 2017
si•ren  (sīrən),USA pronunciation n. 
  1. Mythology[Class. Myth.]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. Reptilesany of several aquatic, eellike salamanders of the family Sirenidae, having permanent external gills, small forelimbs, and no posterior limbs.

adj. 
  1. of or like a siren.
  2. seductive or tempting, esp. dangerously or harmfully:the siren call of adventure.

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

v.t. 
  1. to allure in the manner of a siren.
siren•like′, adj. 
  • Greek Seiré̄n
  • Late Latin Sīrēna, Latin Sīrēn
  • Old French sereine
  • Middle English sereyn 1300–50
    • 2.See corresponding entry in Unabridged seductress, temptress, vamp.


Collins Concise English Dictionary © HarperCollins Publishers::

siren /ˈsaɪərən/ n
  1. a device for emitting a loud wailing sound, esp as a warning or signal, typically consisting of a rotating perforated metal drum through which air or steam is passed under pressure
  2. (sometimes capital) one of several sea nymphs whose seductive singing was believed to lure sailors to destruction on the rocks the nymphs inhabited
  3. a woman considered to be dangerously alluring or seductive
  4. any aquatic eel-like salamander of the North American family Sirenidae, having external gills, no hind limbs, and reduced forelimbs
Etymology: 14th Century: from Old French sereine, from Latin sīrēn, from Greek seirēn



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