English Words Starting With D

• deus ex machina

  nounC2
  /ˌdeɪ.əs eks ˈmæk.ɪ.nə/An unexpected power, event, or character that suddenly resolves an apparently unsolvable plot situation in a story.
• deus ramos

  nounLow
  /ˌdeɪ.ʊs ˈræ.mɒs/Literal Spanish translation for 'God's Branches', originally a Spanish surname.
• deusdedit

  nounExtremely Rare / Obsolete
  /ˌdeɪʊsˈdeɪdɪt/A historical name; specifically, the name of several early medieval popes and saints.
• deuteragonist

  nounC2
  /ˌdjuːtəˈraɡənɪst/The character second in importance to the protagonist in a dramatic or literary work.
• deuteranopia

  nounVery Low
  /ˌdjuːtərəˈnəʊpɪə/A form of red-green color blindness where the green cone photoreceptors in the eye are missing or deficient, causing difficulty distinguishing between reds, greens, and some blues and yellows.
• deuterate

  verbverb-transitiveC2 (Very Rare/Specialised)
  /ˈdjuːtəreɪt/To combine or treat (a compound) with deuterium or heavy water, especially by replacing hydrogen atoms with deuterium atoms.
• deuteride

  nounVery rare
  /ˈdjuːtəraɪd/A chemical compound in which deuterium (a heavy isotope of hydrogen) is bonded to another element.
• deuterium

  nounC2
  /djuːˈtɪə.ri.əm/A stable isotope of hydrogen with one proton and one neutron in its nucleus, often called 'heavy hydrogen'.
• deuterium oxide

  nounVery low (Specialized/Scientific)
  /djuːˈtɪə.ri.əm ˈɒk.saɪd/The chemical compound D₂O, water in which the usual hydrogen atoms are replaced by deuterium (a heavier isotope of hydrogen).
• deuterocanonical books

  plural-nounC2
  /ˌdjuːtərəʊkəˈnɒnɪkəl bʊks/A set of Old Testament books and passages which are part of the biblical canon for some Christian traditions (primarily Roman Catholic and Eastern Orthodox) but not for others (primarily Protestant and Jewish).
• deuterogamy

  nounVery Low (Academic/Legal/Technical)
  /ˌdjuːtəˈrɒɡəmi/A second marriage after the death or divorce of a first spouse.
• deuteromycete

  nounC2/Professional
  /ˌdjuːtərə(ʊ)ˈmʌɪsiːt/A fungus belonging to an obsolete taxonomic group (Deuteromycota or Fungi Imperfecti) characterized by reproducing asexually through conidia, lacking a known sexual reproductive stage.
• deuteron

  nounC2+
  /ˈdjuːtərɒn/The nucleus of a deuterium atom, consisting of one proton and one neutron; it is a stable isotope of hydrogen (H-2).
• deuteronomist

  nounC2 / Very Rare
  /ˌdjuːtəˈrɒnəmɪst/A scholar or editor, especially one credited with composing or editing the biblical Book of Deuteronomy.
• deuteronomy

  nounLow
  /ˌdjuːtəˈrɒnəmi/The fifth book of the Old Testament, containing a repetition of the Mosaic law.
• deuteropathy

  nounVery Low
  /ˌdjuːtəˈrɒpəθi/A secondary disease or pathological condition arising as a consequence of a primary disease.
• deuterostome

  nounVery Low
  /ˈdjuːtərəʊstəʊm/Any animal belonging to the major group Deuterstomia, characterized by embryonic development where the anus forms first from the blastopore and the mouth forms secondarily.
• deuterotoky

  nounVery rare/technical
  /ˌdjuːtəˈrɒtəki/A form of parthenogenesis where females produce both male and female offspring from unfertilised eggs.
• deuton

  nounVery Low / Technical
  /ˈdjuːtɒn/The nucleus of deuterium, consisting of one proton and one neutron; a deuteron.
• deutoplasm

  nounLow
  /ˈdjuːtə(ʊ)ˌplæzəm/The non-living, stored food material, especially yolk, in the cytoplasm of an ovum or egg cell.

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