- Weber test
- We·ber test or We·ber's test 'web-ər(z)-, 'vā-bər(z)- n a test to determine the nature of unilateral hearing loss in which a vibrating tuning fork is held against the forehead at the midline and conduction deafness is indicated if the sound is heard more loudly in the affected ear and nerve deafness is indicated if it is heard more loudly in the normal earWe·ber-Liel 'vā-bər-'lēl Friedrich Eugen (1832-1891)German otologist. Weber-Liel taught otology at the universities of Berlin and Jena. He is remembered for a surgical operation consisting of a tenotomy of the tensor tympani. This operation was used in the treatment of certain forms of partial deafness, subjective aural sensations, and the vertiginous feelings associated with these.
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1. (for hearing) the stem of a vibrating tuning fork is placed on the vertex or midline of the forehead; if the sound is heard best in the affected ear, conductive hearing loss is probable; if sound is heard best in the normal ear, there is probably sensorineural hearing loss. (F. E. Weber.) 2. (for blood) mix the sample with 30 per cent acetic acid and extract with ether; to the ether extract add an alcoholic solution of guaiac and hydrogen peroxide. A blue color indicates blood. (E. H. Weber.)Weber test for hearing loss.
Medical dictionary. 2011.