The spelling of the word "vuerometer" is quite unusual and may confuse some readers. However, the word is actually spelled phonetically with the IPA transcription /vjuːrɑːmɪtər/. This means that the first two letters "vu" are pronounced as "vju" and the "e" in "meter" is actually silent. The word refers to an instrument used to measure water flow in channels, and is typically used in the field of hydrology. While the spelling may be unfamiliar, the correct pronunciation can make all the difference.
An instrument for measuring the distance between the pupils of the two eyes.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.