mensuration

noun

1. 1.The act or process of measuring; measurement.
2. 2.The study of measurement, especially the derivation and use of algebraic formulae to measure the areas, volumes and different parameters of geometric figures.
3. 3.A 13th century system for governing rhythmic relationships in music that was a precursor to the modern use of time signatures; The use of mensural notation.
4. 4.The use of quantitative measurements of forest stand to determine stand timber volume, productivity, and health.