n. In Greek myth, one of two, three, or an indeterminate number of seanymphs who by their singing fascinated those who sailed by their island, and then destroyed them.n. A mermaid.n. A charming, alluring, or enticing woman; a woman dangerous from her arts of fascination.n. One who sings sweetly.n. A fabulous creature having the form of a winged serpent.n. In herpetology: Any member of the Sirenidæ.n. A Linnean genus of amphibians, now restricted as the type of the family Sirenidæ. Also Sirene.n. One of the Sirenia, as the manatee, dugong, halicore, or sea-cow; any sirenian.n. An acoustical instrument consisting essentially of a wooden or metallic disk, pierced with holes equidistantly arranged in a circle, which can be revolved over a jet of compressed air or steam so as to produce periodic puffs.n. An apparatus for testing woods and metals to ascertain their sonorous qualities.n. In heraldry, the representation of a mermaid, used as a bearing.Pertaining to or characteristic of a siren; dangerously alluring; fascinating; bewitching.n. A monster without lower extremities.n. Same as sympus.