Definition of venation in English:

venation

noun vɪˈneɪʃ(ə)nviˈneɪʃən

mass nounBiology

1The arrangement of veins in a leaf or in an insect's wing.
〔生〕脉序；叶脉型，翅脉序
Example sentencesExamples
- Leaves have parallel venation, with veins converging at the tip of the leaf.
- Reticulate leaf venation may also provide physiological advantages in forest understories.
- They produced several types of foliage all characterized by pinnate leaves with open dichotomous venation.
- The medium green colored leaves are long and linear with parallel venation.
- Most Paleozoic insects are known only by their wing venation since wings are the least degradable parts of insects.
1. 1.1 The system of venous blood vessels in an animal.
  静脉系统

Derivatives

venational

adjective

Biology

They differ from some of the more slender Palaeodictyoptera of the time, which they otherwise resembled, chiefly in venational characters and in possessing a long caudal style.
Example sentencesExamples
- Most Paleozoic insects are known only by their wing venation since wings are the least degradable parts of insects, so phylogenetic schemes will rely on venational characters.

Origin

Mid 17th century: from Latin vena 'vein' + -ation.

Definition of venation in US English:

venation

nounvēˈnāSHənviˈneɪʃən

Biology

1The arrangement of veins in a leaf or in an insect's wing.
〔生〕脉序；叶脉型，翅脉序
Example sentencesExamples
- Reticulate leaf venation may also provide physiological advantages in forest understories.
- Leaves have parallel venation, with veins converging at the tip of the leaf.
- The medium green colored leaves are long and linear with parallel venation.
- They produced several types of foliage all characterized by pinnate leaves with open dichotomous venation.
- Most Paleozoic insects are known only by their wing venation since wings are the least degradable parts of insects.
1. 1.1 The system of venous blood vessels in an animal.
  静脉系统

Origin

Mid 17th century: from Latin vena ‘vein’ + -ation.

词汇	venation
释义	Definition of venation in English: venation noun vɪˈneɪʃ(ə)nviˈneɪʃən mass nounBiology 1The arrangement of veins in a leaf or in an insect's wing. 〔生〕脉序；叶脉型，翅脉序 Example sentencesExamples Leaves have parallel venation, with veins converging at the tip of the leaf. Reticulate leaf venation may also provide physiological advantages in forest understories. They produced several types of foliage all characterized by pinnate leaves with open dichotomous venation. The medium green colored leaves are long and linear with parallel venation. Most Paleozoic insects are known only by their wing venation since wings are the least degradable parts of insects. 1.1 The system of venous blood vessels in an animal. 静脉系统 Derivatives venational adjective Biology They differ from some of the more slender Palaeodictyoptera of the time, which they otherwise resembled, chiefly in venational characters and in possessing a long caudal style. Example sentencesExamples Most Paleozoic insects are known only by their wing venation since wings are the least degradable parts of insects, so phylogenetic schemes will rely on venational characters. Origin Mid 17th century: from Latin vena 'vein' + -ation. Definition of venation in US English: venation nounvēˈnāSHənviˈneɪʃən Biology 1The arrangement of veins in a leaf or in an insect's wing. 〔生〕脉序；叶脉型，翅脉序 Example sentencesExamples Reticulate leaf venation may also provide physiological advantages in forest understories. Leaves have parallel venation, with veins converging at the tip of the leaf. The medium green colored leaves are long and linear with parallel venation. They produced several types of foliage all characterized by pinnate leaves with open dichotomous venation. Most Paleozoic insects are known only by their wing venation since wings are the least degradable parts of insects. 1.1 The system of venous blood vessels in an animal. 静脉系统 Origin Mid 17th century: from Latin vena ‘vein’ + -ation.
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