Phytochemistry is the branch of chemistry that studies the chemical composition and properties of plant matter. There are numerous synonyms that are used to describe phytochemistry, including plant chemistry, botanical chemistry, and plant biochemistry. Another synonym for this field of study is phytonutrient science, which focuses on identifying the various nutrients that are present in plant-based foods. Additionally, the term natural product chemistry is sometimes used to describe phytochemistry, as many drugs and chemical compounds used in medicine are derived from natural sources, including plants. Overall, phytochemistry is an important area of study that has many applications in fields such as medicine, agriculture, and nutrition.