English Words Starting With M

• magnetic needle

  nounB2
  /mæɡˌnet.ɪk ˈniː.dəl/A slender piece of magnetized steel or iron, typically suspended to pivot freely, that aligns itself with the Earth's magnetic field, pointing roughly toward magnetic north.
• magnetic north

  nounLow
  /mæɡˌnet.ɪk ˈnɔːθ/The direction that a compass needle points towards, aligning with Earth's magnetic field, which is located near the geographic North Pole.
• magnetic particle inspection

  nounC1/C2 (Very low-frequency term outside specialized fields)
  /mæɡˌnet.ɪk ˈpɑː.tɪ.kəl ɪnˈspek.ʃən/A non-destructive testing (NDT) method that uses magnetic fields and small magnetic particles to detect surface and near-surface flaws in ferromagnetic materials.
• magnetic pick-up

  nounC1-C2 / Low-Frequency Technical Term
  /mæɡˌnet.ɪk ˈpɪk ʌp/A device, typically in electric guitars, that converts string vibrations into electrical signals using a magnetic field.
• magnetic pickup

  nounC1
  /mæɡˌnet.ɪk ˈpɪk.ʌp/A device on an electric guitar or other stringed instrument that uses electromagnetism to convert the vibration of the strings into an electrical signal.
• magnetic pole

  nounC1
  /mæɡˌnet.ɪk ˈpəʊl/One of the two points on a magnet or the Earth's surface where the lines of magnetic force are vertical and converge; the north-seeking or south-seeking point of a magnet.
• magnetic pole strength

  nounC2
  /mæɡˌnet.ɪk ˈpəʊl ˌstreŋθ/The intrinsic source strength of a magnetic pole, a fundamental physical quantity used in the magnetic pole model of magnetism.
• magnetic potential

  nounC1
  /mæɡˌnet.ɪk pəˈten.ʃəl/A scalar quantity in physics whose gradient, with a negative sign, gives the magnetic field.
• magnetic pulley

  nounC1
  /mæɡˌnet.ɪk ˈpʊl.i/A cylindrical wheel or roller, typically part of a conveyor system, that contains a permanent magnet or an electromagnet to attract and remove ferrous metal contaminants from material being transported over it.
• magnetic pyrites

  nounRare
  /mæɡˌnet.ɪk ˈpaɪ.raɪts/A bronze-yellow mineral, pyrrhotite, which is magnetic and is a sulfide of iron.
• magnetic quantum number

  nounLow
  /mæɡˌnet.ɪk ˈkwɒn.təm ˈnʌm.bər/A quantum number that describes the component of an electron's orbital angular momentum along a given axis (usually the z-axis) in an atom.
• magnetic recording

  nounLow to Medium
  /mæɡˌnet.ɪk rɪˈkɔː.dɪŋ/The process of storing information (sound, video, data) on a magnetizable medium by altering the magnetic pattern on its surface.
• magnetic resonance

  nounC1
  /mæɡˌnet.ɪk ˈrez.ən.əns/A physical phenomenon in which atomic nuclei in a strong magnetic field absorb and re-emit electromagnetic radiation at specific frequencies.
• magnetic resonance angiography

  nounC1+
  /mæɡˌnɛt.ɪk ˈrɛz.ən.əns ˌæn.dʒiˈɒɡ.rə.fi/A medical imaging technique that uses a magnetic field and radio waves to produce detailed pictures of blood vessels without using X-rays.
• magnetic resonance imaging

  nounC2/Advanced
  /mæɡˌnet.ɪk ˈrez.ən.əns ˌɪm.ɪdʒ.ɪŋ/A medical imaging technique that uses a strong magnetic field and radio waves to generate detailed images of the inside of the body.
• magnetic resonance scan

  nounB2
  /mæɡˌnet.ɪk ˈrez.ən.əns skæn/A medical imaging technique that uses strong magnetic fields and radio waves to generate detailed pictures of the inside of the body, typically without X-rays or ionizing radiation.
• magnetic resonance scanner

  nounB2
  /mæɡˌnɛt.ɪk ˈrɛz.ən.əns ˈskæn.ər/A large medical machine that uses strong magnets and radio waves to produce detailed images of the inside of the body.
• magnetic roasting

  nounVery Low
  /mæɡˈnɛtɪk ˈrəʊstɪŋ/An industrial process in extractive metallurgy where iron ores are heated in a controlled atmosphere to convert non-magnetic iron oxides into magnetic forms (like magnetite) for easier separation.
• magnetic rotation

  nounC2
  /mæɡˌnet.ɪk rəʊˈteɪ.ʃən/The rotation of the plane of polarization of light as it passes through certain transparent materials when placed in a strong magnetic field.
• magnetic star

  nounLow/Very Low (primarily scientific)
  /mæɡˌnet.ɪk ˈstɑː/A celestial object, specifically a neutron star, with an extremely powerful magnetic field.

Showing 501–520 of 8594 words.