Molecule Meaning and Definition

Meaning of molecule: Delve into the meaning and definition of molecule on our page. Explore what molecule truly means and discover its profound significance in the human experience. What does molecule mean to you?

A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. These atoms can be the same or different elements and are held together by chemical bonds such as covalent or ionic bonds. Molecules can vary in size and complexity, from simple diatomic molecules like oxygen (O2) to large complex molecules like proteins. In the broader sense, the term molecule is also used in biology to refer to the smallest unit of a substance that retains all of the physical and chemical properties of that substance. For example, in genetics, a molecule of DNA consists of two strands forming a double helix structure. Overall, molecules play a crucial role in the structure and function of all living organisms and are fundamental to understanding various aspects of chemistry, biology, and physics.