1. deus ex machina an agent who appears unexpectedly to solve a difficulty
  2. telex machine a character printer connected to a telegraph that operates like a typewriter
  3. discrimination unfair treatment of a person or group based on prejudice
  4. desquamation loss of bits of outer skin by peeling or shedding or coming off in scales
  5. Xerox machine a duplicator (trade mark Xerox) that copies graphic matter by the action of light on an electrically charged photoconductive insulating surface in which the latent image is developed with a resinous powder
  6. dialysis machine a medical instrument for separating substances in solution by unequal diffusion through semipermeable membranes
  7. disquisition an elaborate analytical or explanatory essay or discussion
  8. textile machine a machine for making textiles
  9. disgusting highly offensive
  10. decimation destroying or killing a large part of the population
  11. desk sergeant the police sergeant on duty in a police station
  12. sewing machine a textile machine used as a home appliance for sewing
  13. Tsimshian a member of a Penutian people who lived on rivers and a sound in British Columbia
  14. Photostat machine a duplicating machine that makes quick positive or negative copies directly on the surface of prepared paper
  15. diathermy machine a medical instrument for local heating of bodily tissues for medical purposes
  16. discussion an extended communication dealing with a particular topic
  17. Turing machine a hypothetical computer with an infinitely long memory tape
  18. addressing machine a printer that automatically prints addresses on letters for mailing
  19. time machine a science fiction machine that is supposed to transport people or objects into the past or the future
  20. slot machine a machine that is operated by the insertion of a coin in a slot