Definition of secretion

The word "secretion" has its roots in Latin. During the 15th century, the Latin term "secretio" was derived from "secernere," which means "to separate" or "to distinguish." This Latin term was later borrowed into Middle English as "secretion," referring to the process of separating or distinguishing something, often with a sense of mystery or concealment. In scientific contexts, "secretion" specifically refers to the process by which cells or glands release substances, such as saliva, sweat, or hormones, into the environment or bloodstream. This sense of the word likely arose from the idea of these substances being "separated" or "kept hidden" within the cell or gland until they are released. So, the next time you learn about the fascinating intricacies of human biology or chemistry, remember that the word "secretion" has a rich history rooted in the Latin concept of separation and concealment!