Definition of


  1. (noun, animal) eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills
  2. (noun, artifact) an acoustic device producing a loud often wailing sound as a signal or warning
  3. (noun, communication) a warning signal that is a loud wailing sound
  4. (noun, person) a woman who is considered to be dangerously seductive
  5. (noun, person) a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived

via WordNet, Princeton University

Origin of the word Siren

  1. c.1366, "sea nymph who by her singing lures sailors to their destruction," from O.Fr. sereine, from L.L. Sirena, from L. Siren, from Gk. Seiren ["Odyssey," xii.39 ff.], perhaps lit. "binder," from seira "cord, rope." Meaning "device that makes a warning sound" (on an ambulance, etc.) first recorded 1879, in reference to steamboats. Fig. sense … more

via Online Etymology Dictionary, ©2001 Douglas Harper

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(rugby) an act or instance of throwing a ball in to put it into play