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.
By Anne Marie Helmenstine, Ph.D. Molecule Definition: a molecule refers to two or more atoms which have chemically combined to form a single species. Examples: Examples of molecules include water H 2 O, oxygen, gas, O 2.