Skip to Main Content

We have a new app!

Take the Access library with you wherever you go—easy access to books, videos, images, podcasts, personalized features, and more.

Download the Access App here: iOS and Android


(ō″tō-lar″ĭn-gŏl′ō-jē) The division of medical science that includes otology, rhinology, and laryngology.


(ōt′ŏ-lith″) [oto- + Gr. lithos, stone] Microscopic crystals of calcium carbonate embedded within the gelatinous otolithic membrane of the maculae of the utricle and saccule of the inner ear. These are important in sensing the orientation to gravity. SYN: statoconia; statolith.


(ō-tŏl′ō-jĭst) One knowledgeable in the anatomy, physiology, and pathology of the ear; a specialist in diseases of the ear.


(ō-tŏl′ō-jē) [Gr. otos, ear, + logos, word, reason] The science dealing with the ear, its function, and its diseases.


(ō″tō-mī-kō′sĭs) [″ + ″ + osis, condition] An infection of the external auditory meatus of the ear caused by a fungus. SYN: myringomycosis.


(ō″tō-nū-rŏl′ō-jē) [″ + ″ + logos, word, reason] The division of otology that deals with the inner ear, esp. its nerve supply, nerve connections with the brain, and auditory and labyrinthine pathways and centers within the brain. SYN: neuro-otology.


(ō′tō-plăs″tē) [″ + plassein, to form] Plastic surgery of the ear to correct defects and deformities.


(ō″tō-rī″nō-lăr″ĭn-gŏl′ō-jē) [″ + rhis, nose, + larynx, larynx, + logos, word, reason] The science of the ear, nose, and larynx, and their functions and diseases.


(ō″tō-rī-nŏl′ō-jē) [″ + ″ + logos, word, reason] The branch of medicine dealing with the ear and nose and their diseases.


(ō″tō-rē′ă) [″ + rhein, flow] Inflammation of ear with purulent discharge. SEE: otitis.

cerebrospinal fluid o. Leakage of cerebrospinal fluid from the external auditory canal. It is usually the result of prior surgery to the ear or mastoid bone or of trauma to the skull, and may predispose patients to meningitis.


(ō″tō-sklē-rō′sĭs) [″ + sklerosis, hardening] Chronic progressive deafness, esp. for low tones. It is caused by the formation of spongy bone, esp. around the oval window, with resulting ankylosis of the stapes. In the late stages of this condition, atrophy of the organ of Corti may occur. The cause of this condition is unknown, but it may be familial. It is more common in women and may be made worse by pregnancy.

 TREATMENT: Because the three bones of the middle ear become fused, patients cannot normally transmit sound to the inner ear from the vibrations of the tympanic membrane. Various surgical procedures, including stapedectomy, have been used with considerable improvement in hearing.


(ō′tō-skōp) [″ + skopein,...

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.