Wood is a fibrous and porous tissue found in the roots and stems of trees and other woody plants. Wood falls under the category of organic material, it is a natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin which resists compression. Sometimes the definition of wood is represented as it is the only secondary xylem in the stems of trees, or defining it more broadly to include the same type of tissue elsewhere such as in the roots of shrubs and trees. Wood performs the function of providing support, in living trees, enabling them to grow large or stand up by themselves. It also acts as a medium to convey water and other minerals and nutrients between the leaves, growing tissues and the roots. 
Wood has been used for several purposes since a very long time for fuel, for making weapons and tools, as a construction material, for the manufacturing of paper and furniture. Not long ago it also emerged as the feedstock for the production of purified cellulose and its derivatives, such as cellulose acetate and cellophane. Forty seven percent of the growing livestock in forests worldwide was used for commercial purposes, as of the year 2005.

In this sub category you can download free PNG images: Wood Nature. In this category "Wood" we have 25 free PNG images with transparent background.

  • Scrapbooking Material Tag Paper Wood Email PNG Image
    Scrapbooking Material Tag Paper Wood Email
    Format: PNG
    Resolution: 1102x538
    Size: 893.9KB
    Downloads: 746
  • Soil Wood Grey Floor Free Clipart HQ PNG Image
    Soil Wood Grey Floor Free Clipart HQ
    Format: PNG
    Resolution: 750x350
    Size: 252.6KB
    Downloads: 615
  • Shutterstock Wood Signs Free Clipart HQ PNG Image
    Shutterstock Wood Signs Free Clipart HQ
    Format: PNG
    Resolution: 1302x738
    Size: 1.3MB
    Downloads: 601
  • Do Illustrator Wooden Sign Locks Old Wood PNG Image
    Do Illustrator Wooden Sign Locks Old Wood
    Format: PNG
    Resolution: 3500x3500
    Size: 1.5MB
    Downloads: 593
  • Billboard Wooden Wood Signs Sign PNG Image High Quality PNG Image
    Billboard Wooden Wood Signs Sign PNG Image High Quality
    Format: PNG
    Resolution: 574x656
    Size: 128.5KB
    Downloads: 583
  • Picture Wooden Shutterstock Signs Sign Hanging Chains PNG Image
    Picture Wooden Shutterstock Signs Sign Hanging Chains
    Format: PNG
    Resolution: 800x779
    Size: 532.8KB
    Downloads: 547
  • Wooden Frames Preview Free Download Image PNG Image
    Wooden Frames Preview Free Download Image
    Format: PNG
    Resolution: 483x548
    Size: 143.4KB
    Downloads: 537
  • Vector Wood Signs Illustration Royalty-Free PNG Free Photo PNG Image
    Vector Wood Signs Illustration Royalty-Free PNG Free Photo
    Format: PNG
    Resolution: 1500x1500
    Size: 657.8KB
    Downloads: 514
  • Logo Wood Banner Plank Sign PNG Download Free PNG Image
    Logo Wood Banner Plank Sign PNG Download Free
    Format: PNG
    Resolution: 806x901
    Size: 265.4KB
    Downloads: 486
  • Signs Wood Sign Free HD Image PNG Image
    Signs Wood Sign Free HD Image
    Format: PNG
    Resolution: 664x1000
    Size: 713.2KB
    Downloads: 455
  • Wooden Wood Irregular Sign Download Free Image PNG Image
    Wooden Wood Irregular Sign Download Free Image
    Format: PNG
    Resolution: 1000x1000
    Size: 871.6KB
    Downloads: 430
  • Wood Signs Free PNG HQ PNG Image
    Wood Signs Free PNG HQ
    Format: PNG
    Resolution: 2244x2803
    Size: 2.9MB
    Downloads: 411
  • Billboard Wood Signs Sign Free PNG HQ PNG Image
    Billboard Wood Signs Sign Free PNG HQ
    Format: PNG
    Resolution: 756x1000
    Size: 367.7KB
    Downloads: 410
  • Wooden Wood Signs Sign Free HD Image PNG Image
    Wooden Wood Signs Sign Free HD Image
    Format: PNG
    Resolution: 750x1000
    Size: 433.6KB
    Downloads: 403
  • And Wooden Photography Lumber Sign Wood Stock PNG Image
    And Wooden Photography Lumber Sign Wood Stock
    Format: PNG
    Resolution: 694x740
    Size: 226.4KB
    Downloads: 401
  • Rope Wood Plank Sign HD Image Free PNG PNG Image
    Rope Wood Plank Sign HD Image Free PNG
    Format: PNG
    Resolution: 553x471
    Size: 162.7KB
    Downloads: 396
  • Wood Signs Download Free Image PNG Image
    Wood Signs Download Free Image
    Format: PNG
    Resolution: 1300x1031
    Size: 1.5MB
    Downloads: 389
  • Picture Wood Design Frames 083Vt Download HQ PNG PNG Image
    Picture Wood Design Frames 083Vt Download HQ PNG
    Format: PNG
    Resolution: 800x477
    Size: 344.3KB
    Downloads: 385
  • Signs Wood Plank Illustration Royalty-Free Free Download PNG HD PNG Image
    Signs Wood Plank Illustration Royalty-Free Free Download PNG HD
    Format: PNG
    Resolution: 1300x1884
    Size: 2.7MB
    Downloads: 350
  • Computer Flooring Icons Media Lumber Wood Social PNG Image
    Computer Flooring Icons Media Lumber Wood Social
    Format: PNG
    Resolution: 512x512
    Size: 276.5KB
    Downloads: 327

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