Ergonomics is defined as the science related to man and his work, embodying the anatomic, physiologic, and mechanical principles affecting the efficient use of human energy.
The word "Ergonomics" comes from two Greek words "ergon", meaning work, and "nomos" meaning "laws". Today, however, the word is used to describe the science of "designing the job to fit the worker, not forcing the worker to fit the job."
Ergonomics (from the Greek word ergon meaning work, and nomoi meaning natural laws), is the science of refining the design of products to optimize them for human use. Human characteristics, such as height, weight, and proportions are considered, as well as information about human hearing, sight, temperature preferences, and so on. Ergonomics is sometimes known as human factors engineering.