Speciation can be defined as the distribution of an element among defined chemical species in a system, and speciation analysis as the analytical activities of identifying and/or measuring the quantities of one or more individual chemical species in a sample. 1.3 Structural aspects of speciation: The definitions of species and speciation of elements are based on several different levels of atomic and molecular structure where species differences are manifest.
Noun. 1. rickshaw-a small two-wheeled cart for one passenger; pulled by one person. jinrikisha, ricksha. cart-a heavy open wagon usually having two wheels and drawn by an animal.oun. 1. rickshaw-a small two-wheeled cart for one passenger; pulled by one person. jinrikisha, ricksha. cart-a heavy open wagon usually having two wheels and drawn by an animal.
A butcher at work. The definition of a butcher is someone who kills animals or cuts up the bodies of dead animals to be sold as meat. An example of a butcher is someone who slaughters sheep.Butcher is defined as to kill animals or prepare dead animals for meat or to kill large numbers of people without feeling.n example of a butcher is someone who slaughters sheep. Butcher is defined as to kill animals or prepare dead animals for meat or to kill large numbers of people without feeling.