Definition from Wiktionary, the free dictionary
- The art or process of taking electrical measurements.
2013, William J. Turkel, Spark from the Deep: How Shocking Experiments with Strongly Electric Fish Powered Scientific Discovery:
- As electrometry was refined, it became clear that nerves in action exhibited unusual electrical variations. Emil Du Bois-Reymond had shown that electrical current decreased when a nerve was stimulated, a phenomenon he called the "negative variation."