otosclerosis

名词 otosclerosis:

1. hereditary disorder in which ossification of the labyrinth of the inner ear causes tinnitus and eventual deafness

o.to.scle.ro.sis

n.（名词）
A disease of the ear in which the movement of the stapes within the oval window becomes impeded by abnormal deposits of spongy bone, leading to a progressive loss of hearing.
耳硬化症：因骨质疏松发生病态淤积阻塞了锉骨在耳蜗窗内的运动的耳病，可导致渐进性耳聋

【引伸】
o.tosclerot.ic