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hypophonesis

American  
[hahy-poh-fuh-nee-sis, -foh-] / ˌhaɪ poʊ fəˈni sɪs, -foʊ- /

noun

Medicine/Medical.
  1. a sound of less than usual intensity in percussion or auscultation.


Etymology

Origin of hypophonesis

hypo- + -phone + -sis