English Words Starting With M

• macronutrient

  nounC1
  /ˌmæk.rəʊˈnjuː.tri.ənt/A nutrient required by organisms in relatively large amounts for normal growth and functioning; primarily refers to carbohydrates, proteins, and fats in human nutrition.
• macroorganism

  nounLow
  /ˌmæk.rəʊˈɔː.ɡən.ɪ.zəm/An organism that is visible to the naked eye, as opposed to microorganisms like bacteria or viruses.
• macrophage

  nounC2
  /ˈmakrə(ʊ)feɪdʒ/A large white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.
• macrophotography

  nounC2 / Very Low Frequency
  /ˌmækrə(ʊ)fəˈtɒɡrəfi/The photography of very small objects, or small areas of larger objects, at a scale larger than life size (typically 1:1 or greater) on the camera sensor or film.
• macrophysics

  nounLow/Very Low
  /ˌmæk.rəʊˈfɪz.ɪks/The branch of physics that deals with objects and phenomena on a large or macroscopic scale, observable without the need for specialized equipment like microscopes.
• macrophyte

  nounC2 (Low-Frequency Technical Term)
  /ˈmæk.rə.faɪt/A large aquatic plant, visible to the naked eye.
• macroplankton

  nounRare/Scientific
  /ˈmæk.rəʊ.ˌplæŋk.tən/Plankton that is visible to the naked eye, typically larger than 2 millimetres in size.
• macropsia

  nounRare
  /məˈkrɒp.si.ə/A neurological condition where objects appear larger than their actual size.
• macrosegment

  nounC1/C2
  /ˈmæk.rəʊˌseɡ.mənt/A large, discrete segment or unit within a larger system, structure, or market.
• macrosociology

  nounC1
  /ˌmækrəʊˌsəʊsiˈɒlədʒi/The branch of sociology that deals with the large-scale structures, institutions, and processes of entire societies.
• macrosporangium

  nounC2
  /ˌmæk.rəʊ.spəˈræn.dʒi.əm/A sporangium (spore-producing structure) in certain plants, such as ferns and seed plants, that produces larger spores (megaspores) which develop into female gametophytes.
• macrospore

  nounLow (Technical)
  /ˈmakrə(ʊ)spɔː/The larger of two types of spores produced by heterosporous plants, which develops into a female gametophyte.
• macrostructure

  nounC2
  /ˈmæk.rəʊˌstrʌk.tʃər/The overall, large-scale structure or organization of a system, text, or object, as opposed to its finer details.
• macruran

  adjectivenounVery Low
  /məˈkruːrən/A long-tailed decapod crustacean, especially a shrimp, prawn, or lobster.
• macula

  nounLow
  /ˈmakjʊlə/A small spot, patch, or area of distinct colour or texture, especially on the skin or an organ.
• macula lutea

  nounC2/Highly Specialized
  /ˈmakjʊlə ˈluːtɪə/The small central area of the retina, responsible for sharp, detailed central vision.
• macular degeneration

  nounLow (in general discourse); High (in medical/health contexts)
  /ˈmæk.jʊ.lə dɪˌdʒen.əˈreɪ.ʃən/A medical condition involving the deterioration of the macula, the central part of the retina, leading to progressive loss of central vision.
• maculate

  adjectiveverbverb-transitiveC2 (Very Low Frequency, Literary/Formal)
  /ˈmakjʊleɪt/to mark or stain; spotted or blemished.
• maculation

  nounC2 - Extremely rare in general use.
  /ˌmækjʊˈleɪʃən/The act of spotting or staining; the state of being spotted.
• macule

  nounverb-ambitransitiveLow
  /ˈmakjuːl/A small, distinct, flat, discoloured spot or patch on the skin, not elevated above the surface.

Showing 241–260 of 8594 words.