Lignose is a term used to describe wood or woody materials. Some synonyms for lignose include lignin, cellulose, xylem, and lignum. Lignin is a compound found in the cell walls of plants and is responsible for the strength and rigidity of those walls. Cellulose is also found in plant cell walls and is a major component of wood. Xylem refers to the vascular tissue in plants that transports water and minerals from the roots to the rest of the plant. Lignum, like lignose, refers to wood or woody materials. These synonyms are useful in scientific and technical contexts where precise language is necessary to describe plant materials.