Geometric mean diameter
a measure of the central tendency of particle size composition of substrate materials sometimes used as an index of the quality of spawning gravels. Also referred to as D50 size.
Dictionary > Geometric mean diameter
You will also like...

New Zealand’s Unique Geographical History
Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

Mendel’s Law & Mendelian Genetics
One of Mendel’s law of inheritance is the “law of dominance”. Read this tutorial to know more about this form of i..

Freshwater Community Energy Relationships – Producers & Consumers
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

Growth and Development of a Human Baby
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

Biological Viruses
Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...

Growth Patterns
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..