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venation

venation
1. The arrangement of veins (vascular bundles) in a leaf. The leaves of dicotyledons have a central main vein (midrib) with side branches that themselves further subdivide to form a network (net or reticulate venation). The leaves of monocotyledons have parallel veins (parallel venation).

2. The arrangement of the veins in an insect's wing, which is often important in classification.

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"venation." A Dictionary of Biology. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"venation." A Dictionary of Biology. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/venation-1

"venation." A Dictionary of Biology. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/venation-1

venation

ve·na·tion / vēˈnāshən/ • n. Biol. the arrangement of veins in a leaf or in an insect's wing. ∎  the system of venous blood vessels in an animal. DERIVATIVES: ve·na·tion·al / -shənl/ adj.

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"venation." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"venation." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/venation

"venation." The Oxford Pocket Dictionary of Current English. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/venation

venation

venation The pattern formed by the arrangement of the veins on the wings of insects. The veins are identified by a system of letters and numbers which allows their precise arrangement to be described. Venation is frequently used as a taxonomic character.

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"venation." A Dictionary of Zoology. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"venation." A Dictionary of Zoology. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/venation-0

"venation." A Dictionary of Zoology. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/venation-0

venation

venation The arrangement of the veins or nerves of a leaf.

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"venation." A Dictionary of Plant Sciences. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"venation." A Dictionary of Plant Sciences. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/venation

"venation." A Dictionary of Plant Sciences. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/venation