Definition of venation in English:

Share this entry

venation

Pronunciation: /vɪˈneɪʃ(ə)n/

noun

[mass noun] Biology
1The arrangement of veins in a leaf or in an insect’s wing.
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
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.

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.