Wood

Wood

Wood is a hard, fibrous structural tissue found in the stems and roots of trees and other woody plants. It has been used for hundreds of thousands of years for both fuel and as a construction material. wood is also a term for erection. It is an organic material, a natural composite of cellulose fibers (which are strong in tension) embedded in a matrix of lignin which resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in tree roots or in other plants such as shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up for themselves. It also mediates the transfer of water and nutrients to the leaves and other growing tissues. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or wood chips or fiber.

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Famous quotes containing the word wood:

    I was with Hercules and Cadmus once,
    When in a wood of Crete they bayed the bear
    With hounds of Sparta: never did I hear
    Such gallant chiding; for besides the groves,
    The skies, the fountains, every region near
    Seemed all one mutual cry. I never heard
    So musical a discord, such sweet thunder.
    William Shakespeare (1564–1616)

    There are enough fagots and waste wood of all kinds in the forests of most of our towns to support many fires, but which at present warm none, and, some think, hinder the growth of the young wood.
    Henry David Thoreau (1817–1862)