otology       
noun [ U ]  medical specialized uk/əʊˈtɒl.ə.dʒi/ us/oʊˈtɑː.lə.dʒi/
 耳科学
the study of the ear and of diseases of the ear
  He is a professor of otology at Northwestern University. 他是西北大学的耳科教授。 
 84 infants underwent audiological evaluation at the Otology and Cochlear Implant Centre of the University hospital of Pisa. 84名婴儿在比萨大学耳科和耳蜗植入中心做了听力学评估。 
 - More examples
 - He was president of the otology section of the Royal Society of Medicine.
 - The procedure was brought into otology by Hermann Schwartze in the 1870s.
 - Researchers from the department of otology and laryngology at the Harvard Medical School conclude that better air quality is significantly associated with lower prevalence of pediatric ear infections.