English Words Starting With S

• synchronoscope

  nounVery low
  /ˈsɪŋkrənəˌskəʊp/An instrument for measuring or indicating the phase difference between two alternating currents or voltages, or for checking the synchronism of two alternating-current generators.
• synchronous converter

  nounC2 (Very low frequency outside specialized technical fields)
  /ˈsɪŋkrənəs kənˈvɜːtə(r)/A power electronics device that converts alternating current (AC) to direct current (DC) or vice versa, using synchronized switching elements (like thyristors) to control the conversion process.
• synchronous machine

  nounC2 / Highly Specialized Technical
  /ˈsɪŋkrənəs məˈʃiːn/An electrical machine (motor or generator) whose rotor rotates at the same speed as the stator's magnetic field.
• synchronous meteorological satellite

  nounVery Low (C2/Technical)
  /ˌsɪŋ.krə.nəs ˌmiː.ti.ə.rəˈlɒdʒ.ɪ.kəl ˈsæt.əl.aɪt/A satellite that orbits Earth at the same rotational speed as the planet, maintaining a fixed position over a specific longitude, and is used to collect weather data.
• synchronous motor

  nounC1
  /ˌsɪŋ.krə.nəs ˈməʊ.tər/An electric motor whose rotor rotates at the same speed as the rotating magnetic field produced by the stator.
• synchronous orbit

  nounLow
  /ˈsɪŋkrənəs ˈɔːbɪt/An orbit where a satellite revolves around a celestial body at the same rate that the body rotates on its axis, causing the satellite to appear fixed over one point on the body's surface.
• synchronous rotation

  nounC2
  /ˌsɪŋkrənəs rəʊˈteɪʃ(ə)n/A state where an astronomical body's rotational period equals its orbital period around its partner, causing it to keep the same face permanently turned toward that partner.
• synchronous speed

  nounC1/C2
  /ˈsɪŋkrənəs spiːd/In electrical engineering, the constant speed at which the rotating magnetic field of an AC motor's stator rotates; the theoretical speed a motor would achieve if there were no slip between the rotor and the magnetic field.
• synchrony

  nounC1/C2
  /ˈsɪŋkrəni/The state of occurring at the same time; simultaneous action or occurrence.
• synchroscope

  nounC2 (Specialised Technical)
  /ˈsɪŋkrəˌskəʊp/An instrument for indicating whether two alternating currents (or machines, such as generators) are synchronized (in phase and at the same frequency).
• synchrotron

  nounC2 (Specialized/Scientific)
  /ˈsɪŋkrəʊtrɒn/A type of circular particle accelerator in which magnetic and electric fields are synchronized to accelerate charged particles to very high energies.
• synchrotron radiation

  nounC2
  /ˈsɪŋkrə(ʊ)trɒn ˌreɪdɪˈeɪʃ(ə)n/Electromagnetic radiation emitted when charged particles are accelerated radially, i.e., when they are forced to move in a curved path by a magnetic field.
• syncline

  nounlow
  /ˈsɪŋklaɪn/A geological fold in rock layers that is concave upward, forming a trough-like structure.
• synclinorium

  nounVery Low
  /ˌsɪŋklɪˈnɔːrɪəm/A large-scale geological structure consisting of a series of parallel synclines and anticlines, forming a regional downward fold in rock layers.
• syncom

  nounLow/Obsolete
  /ˈsɪŋkɒm/A specific, historical type of communications satellite; often used as a proper noun for the first series of geosynchronous communication satellites (Syncom 1-3).
• syncopate

  verbverb-transitiveC2
  /ˈsɪŋkəpeɪt/to modify rhythm by stressing a normally unstressed beat or omitting a beat/syllable; to shorten by omitting parts.
• syncopation

  nounC1
  /ˌsɪŋ.kəˈpeɪ.ʃən/In music, a shift of accent to a normally weak beat, creating an off-beat, interrupted rhythm.
• syncope

  nounLow
  /ˈsɪŋkəpi/A temporary loss of consciousness, commonly known as fainting; or in linguistics, the omission of sounds or letters from the middle of a word.
• syncretism

  nounC2 (Low frequency, highly specialised)
  /ˈsɪŋkrɪtɪz(ə)m/The process or result of merging or blending different, often seemingly contradictory, beliefs, systems of thought, or practices.
• syncretize

  verbverb-ambitransitiveC2 / Very Low
  /ˈsɪŋkrɪtʌɪz/to attempt or achieve the union or reconciliation of diverse or opposing principles, practices, or parties, especially in religion or philosophy.

Showing 15361–15380 of 15552 words.