Welcome to the International Home Care Nurses Organization. The International Home Care Nurses Organization is a world-wide network of nurses interested in promoting excellence in home-based healthcare throughout the world. We strive to achieve this goal through three initiatives:
The definition of a molecule is the smallest amount of something, particularly of a chemical substance, that can exist on its own. An example of a molecule are two atoms of hydrogen.
ligand. (lÄ«gÉnd), n 1. a molecule, ion, or group bound to the central atom of a chemical compound, such as the oxygen molecule in hemoglobin, which is bound to the central iron atom. 2. an organic molecule attached to a specific site on a surface or to a tracer element.igand. [ligâ²Énd, lÄ«â²gÉnd]. Etymology: L, ligare, to bind. 1 a molecule, ion, or group bound to the central metal atom of a chemical compound, such as the oxygen molecule in oxyhemoglobin, which is bound to the central iron atom.