Definition: The term "Organic Chemistry" refers to a scientific discipline that focuses on the chemical properties, reactions, and applications of organic compounds. Organic chemistry is distinct from inorganic chemistry because it does not focus on elements like oxygen, nitrogen, or hydrogen but rather on molecules composed primarily of carbon atoms. Inorganic chemists study the structure and bonding of ionic and molecular ions, while organic chemists focus on the chemical properties of single molecules with at least one carbon atom. Organic compounds are defined as compounds that have a carbon atom bonded to other carbon atoms or oxygen, hydrogen, or sulfur atoms and have functional groups (e.g., aldehyde, ketone) attached. Organic chemistry has a rich history in the field of chemistry due to its applications in industry and agriculture, including production of biofuels like ethanol from corn, and the creation of organic fertilizers. This discipline is also closely related to the field of biochemistry as it deals with the study of biochemical processes using molecules other than atoms. In summary, "Organic Chemistry" refers to the scientific discipline that studies chemical properties, reactions, and applications of organic compounds.