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siren
Si·ren S0434200 (sī′rən)n.1. Greek Mythology One of a group of sea nymphs who by their sweet singing lured mariners to destruction on the rocks surrounding their island.2. siren A woman regarded as irresistibly alluring.
[Middle English serein, from Old French sereine; see siren.]
si·ren S0434200 (sī′rən)n.1. a. A device in which compressed air or steam is driven against a rotating perforated disk to create a loud, often wailing sound as a signal or warning.b. An electronic device producing a similar sound as a signal or warning: a police car siren.2. Any of several slender aquatic salamanders of the family Sirenidae of eastern North America, having external gills, small forelimbs, and no hind limbs.
[French sirène, from Old French sereine, Siren, from Late Latin Sīrēna, from Latin Sīrēn, from Greek Seirēn.]siren (ˈsaɪərən) n1. (General Engineering) 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 pressure2. (Classical Myth & Legend) (sometimes capital) Greek myth one of several sea nymphs whose seductive singing was believed to lure sailors to destruction on the rocks the nymphs inhabited3. a. a woman considered to be dangerously alluring or seductiveb. (as modifier): her siren charms. 4. (Animals) any aquatic eel-like salamander of the North American family Sirenidae, having external gills, no hind limbs, and reduced forelimbs[C14: from Old French sereine, from Latin sīrēn, from Greek seirēn]si•ren (ˈsaɪ rən)
n. 1. (sometimes cap.) any of several supernatural beings in Greek legend who are part woman and part bird and who lure mariners to destruction with seductive singing. 2. a seductively beautiful or charming woman, esp. one who beguiles men. 3. an acoustical device that produces sound by means of a perforated, rotating disk that interrupts a jet of air or steam. 4. an implement of this kind used as a whistle, fog signal, or warning device. 5. any aquatic, eellike salamander of the family Sirenidae, having permanent external gills and no hind limbs. adj. 6. seductive or tempting, esp. dangerously or harmfully. [1300–50; Middle English sereyn < Old French sereine < Late Latin Sīrēna, Latin Sīrēn < Greek Seirḗn] Thesaurus| Noun | 1. |  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"sea nymph - (Greek mythology) a water nymph who was the daughter of Oceanus or Nereus | | 2. |  siren - a woman who is considered to be dangerously seductiveenchantress, femme fatale, temptress, Delilahadult female, woman - an adult female person (as opposed to a man); "the woman kept house while the man hunted" | | 3. | siren - a warning signal that is a loud wailing soundalarum, warning signal, alarm, alert - an automatic signal (usually a sound) warning of danger | | 4. | siren - an acoustic device producing a loud often wailing sound as a signal or warningacoustic device - a device for amplifying or transmitting soundalarm system, warning device, alarm - a device that signals the occurrence of some undesirable event | | 5. | siren - eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gillssalamander - any of various typically terrestrial amphibians that resemble lizards and that return to water only to breedgenus Siren - a genus of Sirenidae |
sirennoun1. alert, warning, signal, alarm It sounds like an air raid siren.2. seductress, vamp (informal), femme fatale (French), witch, charmer, temptress, Lorelei, Circe She's a voluptuous siren with a husky voice.sirennounA usually unscrupulous woman who seduces or exploits men:enchantress, femme fatale, seductress, temptress.Informal: vamp, witch.adjectiveTending to seduce:alluring, bewitching, come-hither, enticing, inveigling, inviting, luring, seductive, tempting, witching.Translationssiren (ˈsaiərən) noun a kind of instrument that gives out a loud hooting noise as a (warning) signal. a factory siren. 汽笛，警報器 汽笛，警报器 IdiomsSeesiren songSiren
Siren (sī`rən), in Greek mythology, one of three sea nymphs, usually represented with the head of a woman and the body of a bird. Daughters of PhorcusPhorcus
, in Greek mythology, sea god, son of Pontus and Gaea. He married his sister Ceto, who bore him a brood of monsters, including the Gorgons, the Graeae, Scylla, and the Sirens.
..... Click the link for more information. or of AchelousAchelous
, in Greek mythology, river god; son of Oceanus and Tethys. He possessed the power to appear as a bull, a serpent, or a bullheaded man. Hercules defeated him and broke off one of his horns, which, according to one legend, became the cornucopia.
..... Click the link for more information. , the Sirens inhabited an island surrounded by dangerous rocks. They sang so enchantingly that all who heard were drawn near and shipwrecked. Jason and the Argonauts were saved from them by the music of Orpheus, whose songs were lovelier. Odysseus escaped them by having himself tied securely to a mast and by stopping the ears of his men.
siren: see salamandersalamander,
an amphibian of the order Urodela, or Caudata. Salamanders have tails and small, weak limbs; superficially they resemble the unrelated lizards (which are reptiles), but they are easily distinguished by their lack of scales and claws, and by their moist, usually
..... Click the link for more information. .Siren in ancient Greek mythology, a half-bird, half-woman. According to Homer’s Odyssey, the sirens used their enchanting voices to lure sailors to rocky shores, against which the sailors’ ships were smashed. In order to save his ship, Odysseus stopped his companions’ ears with wax and ordered himself tied to the mast. Similarly, Orpheus’ persuasive voice overcame the allure of the sirens and saved the Argonauts from death. The ancient Greeks also believed that the sirens were associated with an underground kingdom, and as a result, the sirens were often depicted on gravestones. The most common type of sirens in ancient Greek art were creatures with the head and chest of a woman and the body of a bird. Figuratively, the term “siren” refers to a beautiful and seductive woman with an enchanting voice.
Siren an acoustic radiator whose operation is based on the periodic interruption of a stream of gas or liquid. Liquid sirens do not differ in principle from gas sirens, but they are used comparatively rarely because of the difficulty in designing a mechanism for radiation into a medium with a high acoustic resistance. Sirens are classified according to the principle of operation as dynamic (rotating) and pulsating. Dynamic sirens are the most widely used type and are subdivided into axial and radial sirens (Figure 1). In an axial siren the air stream coincides with the axis of rotation; in a radial siren the air stream is directed along a radius perpendicular to the axis. In axial sirens a perforated disk—the rotor—rotates relative to a stationary disk—the stator. In radial sirens the rotor and the stator are two coaxial, usually cylindrical, surfaces. The rotor is rotated by an electric motor or by a small gas turbine. Air from a chamber enters under pressure through the apertures in the rotor and stator and is periodically interrupted. The frequency of air pulsations f is determined by the number of apertures in the rotor or stator m and by the number of rotor revolutions per minute N:f= mN/60 hertz (Hz). The frequency f is the fundamental frequency in the sound spectrum being radiated by the siren. The frequency range of sirens used in actual practice ranges from 200-300 Hz to 80-100 kilohertz (kHz); however, some sirens operate at frequencies up to 600 kHz. The power rating of a siren may be as high as tens of kilowatts.  Figure 1. Siren mechanisms: (a) axial siren, (b) radial siren; (1) rotor, (2) electric motor, (3) stator, (4) directional horn, (5) sound reflector, (6) air chamber
Dynamic air sirens are used for signaling, as in alarm and signal sirens, and for various technological purposes, including the coagulation of finely dispersed aerosols, defoaming, the precipitation of fogs, and the acceleration of heat-exchange and mass-exchange processes. REFERENCESBergmann, L. Ul’trazvuk i ego primenenie ν nauke i lekhnike, 2nd ed. Moscow, 1957. (Translated from German.)
Crawford, A. E. Ul’trazvukovaia tekhnika. Moscow, 1958. (Translated from English.)
Veller, V. A., and B. I. Stepanov. “Ul’trazvukovye sireny s privodom ot elektrodvigatelia.” Akusticheskii zhurnal, 1963, vol. 9, no. 3.IU. IA. BORISOV [23–1333–] siren[′sī·rən] (engineering acoustics) An apparatus for generating sound by the mechanical interruption of the flow of fluid (usually air) by a perforated disk or cylinder. sirenhalf-woman, half-bird, enticed seamen to their death with song. [Gk. Myth.: Benét, 934]See: Monsterssiren1. 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. Greek myth one of several sea nymphs whose seductive singing was believed to lure sailors to destruction on the rocks the nymphs inhabited 3. any aquatic eel-like salamander of the North American family Sirenidae, having external gills, no hind limbs, and reduced forelimbs MedicalSeesalamanderSIREN
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| SIREN➣Services, Immigrant Rights, and Education Network | | SIREN➣Suicide Information Research and Evidence Network (UK) | | SIREN➣Système National Informatique pour le Répertoire des Entreprises et des Etablissements (France) | | SIREN➣Safety Inspection Report Email Notification | | SIREN➣Sanders Intact Reentry Encapsulation | | SIREN➣Secure Interoperability Releaseability Environment |
Siren
Synonyms for Sirennoun alertSynonymsnoun seductressSynonyms- seductress
- vamp
- femme fatale
- witch
- charmer
- temptress
- Lorelei
- Circe
Synonyms for Sirennoun a usually unscrupulous woman who seduces or exploits menSynonyms- enchantress
- femme fatale
- seductress
- temptress
- vamp
- witch
adj tending to seduceSynonyms- alluring
- bewitching
- come-hither
- enticing
- inveigling
- inviting
- luring
- seductive
- tempting
- witching
Words related to Sirennoun a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs livedRelated Wordsnoun a woman who is considered to be dangerously seductiveSynonyms- enchantress
- femme fatale
- temptress
- Delilah
Related Wordsnoun a warning signal that is a loud wailing soundRelated Words- alarum
- warning signal
- alarm
- alert
noun an acoustic device producing a loud often wailing sound as a signal or warningRelated Words- acoustic device
- alarm system
- warning device
- alarm
noun eellike aquatic North American salamander with small forelimbs and no hind limbsRelated Words |