1. distress signal an internationally recognized signal sent out by a ship or plane indicating that help is needed
  2. cardiac resuscitation an emergency procedure consisting of external cardiac massage and artificial respiration; the first treatment for a person who has collapsed and has no pulse and has stopped breathing; attempts to restore circulation of the blood and prevent death or brain damage due to lack of oxygen
  3. discursive tending to cover a wide range of subjects
  4. acoustic resistance opposition to the flow of sound through a surface
  5. discursiveness the quality of being discursive
  6. regression line a smooth curve fitted to the set of paired data in regression analysis; for linear regression the curve is a straight line
  7. discursively in a rambling manner
  8. genus Dicrostonyx pied lemmings
  9. deoxyadenosine a nucleoside component of DNA
  10. coastguardsman a member of a coastguard
  11. data processing (computer science) a series of operations on data by a computer in order to retrieve or transform or classify information
  12. Lancastrian line the English royal house that reigned from 1399 to 1461
  13. Mason-Dixon line the boundary between Maryland and Pennsylvania
  14. adrenaline a secretion in response to stress, stimulating nerve action
  15. acoustic delay line a delay line based on the time of propagation of sound waves
  16. genus Chrysosplenium genus of widely distributed semiaquatic herbs with minute greenish-yellow apetalous flowers
  17. Dicrostonyx hudsonius of northern Canada
  18. excursion a journey taken for pleasure
  19. catachresis strained or paradoxical use of words either in error (as `blatant' to mean `flagrant') or deliberately (as in a mixed metaphor: `blind mouths')
  20. quarter sessions a local court with criminal jurisdiction and sometimes administrative functions