Definition of mesotympanic in English:

mesotympanic

Pronunciation /ˌmɛsə(ʊ)tɪmˈpanɪk/

adjective

Anatomy
  • Of, relating to, or designating the portion of the ear medial to the tympanic membrane (one of the four described regions of the middle ear space).

Origin

Mid 19th century (in an earlier sense). From meso- + tympanic [noun].