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.
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.
Derivatives
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.