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venation

n. 叶翅的排列,叶脉,脉络,纹理

叶翅的排列,叶脉,脉络,纹理

WordNet (r) 3.0 (2006) (WordNet)

venation
n 1: (botany) the arrangement of veins in a leaf
2: (zoology) the system of venous blood vessels in an animal
[synonym: {venation}, {venous blood system}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Venation \Ve*na"tion\, n. [L. vena a vein.]
The arrangement or system of veins, as in the wing of an
insect, or in the leaves of a plant. See Illust. in Appendix.
[1913 Webster]

Venation \Ve*na"tion\, n. [L. venatio, fr. venari, p. p.
venatus, to hunt. See {Venison}.]
The act or art of hunting, or the state of being hunted.
[Obs.] --Sir T. Browne.
[1913 Webster]

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英文字典中文字典相关资料:

VENATION Definition Meaning - Merriam-Webster
The meaning of VENATION is an arrangement or system of veins (as in the tissue of a leaf or the wing of an insect) How to use venation in a sentence
Venation and its Types - Leaf | Botany - BrainKart
The arrangement of veins and veinlets on the leaf blade or lamina is called venation Internally, the vein contains vascular tissues Conventionally venation is classified into two types namely, Reticulate venation and Parallel venation
Venation Meaning, Examples and Relation Between Venation and Roots . . .
What is venation? Give its types All the leaves contain veins The arrangement of veins in the leaves of various plants is different The arrangement of veins in the lamina (or leaf blade) is known as venation of the leaf There are two main types of venation (or vein arrangements) in the leaves These are :
Leaf - Venation - Veins, Pattern, Parallel, and Leaves - JRank
Venation is the pattern of veins in the blade of a leaf The veins consist of vascular tissues which are important for the transport of food and water Leaf veins connect the blade to the petiole, and lead from the petiole to the stem
Venation - Master Gardeners of Northern Virginia
The arrangement of veins in a leaf is called venation Two common forms of venation that are the starting point for many plant identification systems are pinnate and palmate In a pinnate leaf, the secondary veins are spaced along the central midvein in a feathered pattern as in the leaves of Betula nigra (river birch)
Venation: The Vascular Lifeline Of Leaves - jstor. blog
Venation, the pattern of veins in a leaf, is a crucial element in plant physiology, determining water and nutrient transport, strength, and photosynthesis Composed of specialized vascular tissues, xylem and phloem, veins form intricate networks within the leaf's structure
Leaf venation is the term used to describe the arrangement of . . . - BYJUS
Leaf venation is the term used to describe the arrangement of veins in a leaf lamina Leaves are the most important vegetative structure They perform photosynthesis
What is venation? Give its types. - Vedantu
Venation are the patterns that occur in both monocot and dicot plants There are two types of venation i e parallel venation and reticulate venation Veins are arranged parallelly in parallel venation whereas in reticulate venation, veins are arranged in a web-like pattern

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