Definition of phonophobia in US English:

phonophobia

noun

Medicine
  • Intolerance of or aversion to (loud) noise, especially as a symptom of migraine.

Origin

Mid 19th century (in an earlier sense). From phono- + -phobia.

Pronunciation

phonophobia

/ˌfəʊnə(ʊ)ˈfəʊbɪə/