mensuration

1. (mathematics) The study of measurement, especially the derivation and use of algebraic formulae to measure the areas, volumes and different parameters of geometric figures.Examples: "With the passage of time I have realized that the illustrations can also serve, to some extent, to make mensuration more readily possible."countableuncountable

2. (music) 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.Examples: "Different levels of mensuration have different roles in the musical structure. The most prominent one is the one corresponding to the compositional tactus. Rhythmic groups may contradict the mensuration temporarily, but in the examples in this book, they never do so throughout an entire piece."countableuncountable

3. (forestry) The use of quantitative measurements of forest stand to determine stand timber volume, productivity, and health.Examples: "Forest mensuration, in many respects the most important branch of forestry, was nicely defined by Professor Henry S. Graves (1906) in the first complete volume on forest mensuration to appear in the Americas."countableuncountable