English edit

Etymology edit

poly- +‎ somno- +‎ -graph

Noun edit

polysomnograph (plural polysomnographs)

  1. polysomnogram
    • 2009 June 9, Nicholas Bakalar, “Childhood: Obesity Linked to Sleep Disorder”, in New York Times[1]:
      Researchers had 700 children spend a night in a sleep lab where they were evaluated using a polysomnograph, an instrument that measures sleep quality and breathing function.