wood
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Article
34 sectionsContents
- History
- Physical properties
- Growth rings
- Knots
- Color
- Water content
- Structure
- Earlywood and latewood
- In softwood
- In ring-porous woods
- In diffuse-porous woods
- Monocots
- Specific gravity
- Density
- Tables
- Hard versus soft
- Chemistry
- Extractives
- Uses
- Production
- Fuel
- Pulpwood
- Construction
- Flooring
- Engineered products
- Furniture and utensils
- Other
- Art
- Sports and recreational equipment
- Bacterial degradation
- See also
- Sources
- References
- External links
Wood is a structural tissue/material found as xylem in the stems and roots of trees and other woody plants. Being a natural material, it is characterized as an organic materiala natural composite of cellulosic fibers that are strong in tension and embedded in a matrix of lignin and hemicelluloses that resists compression.
Wood is sometimes defined as only the secondary xylem in the stems of trees, or more broadly to include the same type of tissue elsewhere, such as in the roots of trees or shrubs. In a living tree, it performs a mechanical-support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients among the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, woodchips, or fibers.