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n. The science that deals with measurement.

n. A system of measurement.

n. The science of weights and measures or of measurement.

n. A system of weights and measures.

n. The science of, or a system of, weights and measures; also, a treatise on the subject.

n. The science of weights and measures.

n. the scientific study of measurement

"In science, he is famous for many developments in metrology, astronomy and seismology."

scientific discipline    science   

documentary metrology    historical metrology    inductive metrology   

metrological    metric   

absorptiometry    re-search    motion-control    microprocessor-based    indicatinga    no-discipline    ten-stringed    earth-based    parapsychological    countercyclical