Cellulose

Part of speech: noun

Pronunciation: /ˈsɛljʊləʊz/

Definitions

1. A polysaccharide that serves as a fundamental building block in the structural integrity of plant cell walls, it is also a significant source of dietary fiber and has various uses in industry
2. This organic compound is primarily composed of glucose units and provides essential support to the cellular structure of plants while being important for human nutrition and numerous industrial processes
3. A complex carbohydrate that forms a major component of plant cell walls, it plays a vital role in plant structure, dietary fiber, and various industrial applications

Etymology: Cellulose was named in 1838 by the French chemist Anselme Payen, who isolated it from plant material and gave it a name built from "cellule," the French word for a small cell. The naming was deliberate: Payen recognised that the same substance formed the walls of plant cells everywhere, and the word joined the French "cellule" to the suffix "-ose," which French chemists used for carbohydrates, much as "glucose" and "sucrose" were formed. The French "cellule" descends from Latin "cellula," a diminutive of "cella," meaning a small room or storeroom. The Latin diminutive ending "-ula" literally means "little," so a cell was originally a little chamber. Robert Hooke's use of "cell" for the compartments he saw in cork under his microscope in the 1660s drew on that same sense of tiny enclosed rooms. English borrowed the word directly from French, so "cellulose" carries the French chemical naming tradition with it rather than arriving through Latin alone.

Synonyms: fiber, polysaccharide