from The American Heritage® Dictionary of the English Language, 4th Edition
- suffix Measuring device: anemometer.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- suffix Used to form the names of measuring devices.
from the GNU version of the Collaborative International Dictionary of English
- A suffix denoting that by which anything is measured.
Should it be Wilhelm Bruhn, the German inventor of the taxameter, a device that measured (the -meter part of the compound) distance or time, and calculated thereon a charge (taxa-)?