Here you will find one or more explanations in English for the word Operameter.
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Operameter
Operameter Op`er*am"e*ter, n. [L. opus, operis, pl. opera work
+ -meter.]
An instrument or machine for measuring work done, especially
for ascertaining the number of rotations made by a machine or
wheel in manufacturing cloth; a counter. --Ure.
Meaning of Operameter from wikipedia