English Words Starting With M

• magnetoencephalogram

  nounC2 (Very Low Frequency, Specialised)
  /mæɡˌniːtəʊ.ɛnˈsef.ə.lə.ɡræm/A recording of the magnetic fields produced by electrical activity in the brain.
• magnetofluid dynamics

  nounRare/Specialised
  /mæɡˌniːtəʊˈfluːɪd daɪˈnæmɪks/The study of how electrically conducting fluids (such as plasmas, liquid metals, or salt water) behave under the influence of magnetic fields.
• magnetogasdynamics

  nounExtremely rare/Very low frequency
  /ˌmæɡnɪtəʊˌɡæsdaɪˈnæmɪks/The study of the flow of electrically conducting gases and plasmas in the presence of magnetic fields.
• magnetogenerator

  nounVery Low
  /mæɡˌniː.təʊˈdʒen.ə.reɪ.tər/A device that generates electricity by rotating a coil within a magnetic field, or by moving a magnet relative to a coil.
• magnetogram

  nounC1/C2
  /mæɡˈniːtəˌɡræm/A record, image, or chart produced by a magnetograph, showing the strength and/or direction of a magnetic field over a surface or period of time.
• magnetograph

  nounVery Low
  /mæɡˈniː.tə.ʊ.ɡrɑːf/A scientific instrument for measuring and continuously recording variations in the strength and direction of magnetic fields.
• magnetohydrodynamic generation

  nounVery Low
  /mæɡˌniːtəʊˌhaɪdrəʊdaɪˈnæmɪk ˌdʒɛnəˈreɪʃən/The production of electricity directly from a high-temperature, electrically conductive fluid (like a plasma or ionized gas) moving through a magnetic field.
• magnetohydrodynamics

  nounC2
  /mæɡˌniːtəʊˌhaɪdrəʊdaɪˈnæmɪks/The study of the magnetic properties and behaviour of electrically conducting fluids, such as plasmas, liquid metals, and salt water.
• magnetohydromagnetic wave

  nounVery low
  /mæɡˌniːtəʊˌhaɪdrə(ʊ)mæɡˈnɛtɪk weɪv/A wave propagating in an electrically conducting fluid or plasma in the presence of a magnetic field, resulting from the coupling of fluid dynamics and electromagnetism.
• magnetomechanical ratio

  nounVery Low
  /ˌmæɡnɪtəʊmɪˈkænɪkəl ˈreɪʃiəʊ/The ratio of a particle's magnetic moment to its angular momentum.
• magnetometer

  nounLow
  /ˌmæɡ.nɪˈtɒm.ɪ.tər/A scientific instrument used for measuring the strength and/or direction of a magnetic field.
• magnetomotive force

  nounVery Low
  /maɡˌniː.təʊˈməʊ.tɪv fɔːs/The force that drives magnetic flux through a magnetic circuit, analogous to electromotive force (voltage) in an electrical circuit.
• magneton

  nounC2
  /ˈmæɡnɪtɒn/A unit of magnetic moment used in atomic and nuclear physics, specifically the Bohr magneton (for electrons) or nuclear magneton (for protons/nuclei).
• magnetooptics

  nounVery Low
  /mæɡˌniː.təʊˈɒp.tɪks/The branch of physics that studies the interaction between magnetism and light, specifically how magnetic fields affect the optical properties of materials.
• magnetopause

  nounC2 (Proficient)
  /ˈmæɡ.nɪ.təʊˌpɔːz/The outer boundary of a planet's magnetosphere, where the planet's magnetic field pressure balances the pressure from the solar wind.
• magnetoplasmadynamics

  nounVery Rare/Very Low
  /mæɡˌniː.təʊˌplæz.mə.daɪˈnæm.ɪks/The study of the behaviour of electrically conducting fluids (plasmas) in magnetic fields.
• magnetoresistance

  nounVery Low
  /mæɡˌniːtəʊrɪˈzɪstəns/The change in electrical resistance of a material when subjected to an external magnetic field.
• magnetorheology

  nounVery low (C2+)
  /ˌmæɡ.niː.təʊ.riˈɒl.ə.dʒi/The branch of physics or materials science that studies the flow and deformation characteristics of fluids (usually suspensions) whose viscosity can be dramatically and reversibly changed by applying a magnetic field.
• magnetosheath

  nounC2
  /mæɡˌniː.təʊˈʃiːθ/The region of space between the bow shock and the magnetopause of a planet, where the solar wind plasma is compressed and heated.
• magnetosphere

  nounLow
  /ˈmæɡ.nɪ.təʊ.sfɪər/The region of space surrounding a celestial body (like Earth) that is controlled by that body's magnetic field.

Showing 541–560 of 8594 words.