1. directorship the position of a director of a business concern
  2. doctor's bill statement of charges for medical services
  3. direct transmission a transmission mechanism in which the infectious agent is transferred directly into the body via touching or biting or kissing or sexual intercourse or by droplets entering the eye or nose or mouth
  4. direct sum a union of two disjoint sets in which every element is the sum of an element from each of the disjoint sets
  5. direct mail advertising sent directly to prospective customers via the mail
  6. direct primary a primary where voters directly select the candidates who will run for office
  7. directory an alphabetical list of names and contact information
  8. Tractarianism principles of the founders of the Oxford movement as expounded in pamphlets called `Tracts for the Times'
  9. disassembly the act of taking something apart (as a piece of machinery)
  10. directed study a course of study that is supervised and controlled by a specialist in the subject
  11. structuralism an anthropological theory that there are unobservable social structures that generate observable social phenomena
  12. characteristically in characteristic manner
  13. Diceros simus large light-grey African rhinoceros having two horns
  14. director someone who manages an organization
  15. disassemble take apart
  16. structural steel a strong steel that is rolled into shapes that are used in construction
  17. direct-grant school formerly a school that charged tuition fees and also received government grants in return for admitting certain non-paying students who were nominated by the local authorities
  18. Richter scale a logarithmic scale of 1 to 10 formerly used to express the magnitude of an earthquake on the basis of the size of seismograph oscillations
  19. distress signal an internationally recognized signal sent out by a ship or plane indicating that help is needed
  20. rectorship the office or station of a rector