Definition of venation in English:

venation

Line breaks: ven|ation
Pronunciation: /vɪˈneɪʃ(ə)n
 
/

noun

[mass noun] Biology
  • 1The arrangement of veins in a leaf or in an insect’s wing.
    More example sentences
    • 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.
    • Leaves have parallel venation, with veins converging at the tip of the leaf.
  • 1.1The system of venous blood vessels in an animal.

Derivatives

venational

adjective
More example sentences
  • 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.
  • 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.

Origin

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

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