venationPronunciation: /vɪˈneɪʃ(ə)n/Definition of venation noun [mass noun] Biology the arrangement of veins in a leaf or in an insect’s wing. the system of venous blood vessels in an animal. Derivatives venational adjective Origin: mid 17th century: from Latin vena 'vein' + -ationvenation in other Oxford dictionaries Definition of venation in the US English dictionary
