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  • English Word Diphtheritic Definition Pertaining to, or connected with, diphtheria.
  • English Word Diphtheritic Definition Having characteristics resembling those of diphtheria; as, diphtheritic inflammation of the bladder.
  • English Word Diphthong Definition A coalition or union of two vowel sounds pronounced in one syllable; as, ou in out, oi in noise; -- called a proper diphthong.
  • English Word Diphthong Definition A vowel digraph; a union of two vowels in the same syllable, only one of them being sounded; as, ai in rain, eo in people; -- called an improper diphthong.
  • English Word Diphthong Definition To form or pronounce as a diphthong; diphthongize.
  • English Word Diphthongal Definition Relating or belonging to a diphthong; having the nature of a diphthong.
  • English Word Diphthongalize Definition To make into a diphthong; to pronounce as a diphthong.
  • English Word Diphthongation Definition See Diphthongization.
  • English Word Diphthongic Definition Of the nature of diphthong; diphthongal.
  • English Word Diphthongization Definition The act of changing into a diphthong.
  • English Word Diphthongize Definition To change into a diphthong, as by affixing another vowel to a simple vowel.
  • English Word Diphycercal Definition Having the tail fin divided into two equal parts by the notochord, or end of the vertebral column; protocercal. See Protocercal.
  • English Word Diphygenic Definition Having two modes of embryonic development.
  • English Word Diphyllous Definition Having two leaves, as a calyx, etc.
  • English Word Diphyodont Definition Having two successive sets of teeth (deciduous and permanent), one succeeding the other; as, a diphyodont mammal; diphyodont dentition; -- opposed to monophyodont.
  • English Word Diphyodont Definition An animal having two successive sets of teeth.
  • English Word Diphyozooid Definition One of the free-swimming sexual zooids of Siphonophora.
  • English Word Diplanar Definition Of or pertaining to two planes.
  • English Word Dipleidoscope Definition An instrument for determining the time of apparent noon. It consists of two mirrors and a plane glass disposed in the form of a prism, so that, by the reflections of the sun's rays from their surfaces, two images are presented to the eye, moving in opposite directions, and coinciding at the instant the sun's center is on the meridian.
  • English Word Diploblastic Definition Characterizing the ovum when it has two primary germinal layers.
  • English Word Diplocardiac Definition Having the heart completely divided or double, one side systemic, the other pulmonary.
  • English Word Diplococci Definition of Diplococcus
  • English Word Diplococcus Definition A form of micrococcus in which cocci are united in a binary manner. See Micrococcus.
  • English Word Diploe Definition The soft, spongy, or cancellated substance between the plates of the skull.
  • English Word Diploetic Definition Diploic.
  • English Word Diplogenic Definition Partaking of the nature of two bodies; producing two substances.
  • English Word Diploic Definition Of or pertaining to the diploe.
  • English Word Diploid Definition A solid bounded by twenty-four similar quadrilateral faces. It is a hemihedral form of the hexoctahedron.
  • English Word Diploma Definition A letter or writing, usually under seal, conferring some privilege, honor, or power; a document bearing record of a degree conferred by a literary society or educational institution.
  • English Word Diplomacy Definition The art and practice of conducting negotiations between nations (particularly in securing treaties), including the methods and forms usually employed.