: an arrangement or system of veins (as in the tissue of a leaf or the wing of an insect)
Illustration of venation
1 parallel-veined
2 net-veined
3 dichotomously veined
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Tiger Eye has yellow flowers with a bloodshot look that’s highlighted with deep red venation.—Joshua Siskin, Oc Register, 30 Apr. 2026 Kennedy was getting a fresh shave, tufts of udder-fuzz drifting to the floor, revealing her resplendent venation.—Eric Boodman, STAT, 16 July 2024 The leaves had reticulate venation, a web-like pattern of interconnected veins.—Allison Futterman, Discover Magazine, 10 Nov. 2023 Growers like Proven Winners have a dozen or so new varieties of the showy aroid this year alone, ranging from dark red with green edges (‘Scarlet Flame’) to red-speckled white leaves with dark green edges and venation (‘Splash of Wine’).—Heather Arndt Anderson, Sunset Magazine, 10 Jan. 2020 The bloom is golden with a tracery of magenta venation.—Adrian Higgins, idahostatesman, 21 Feb. 2018 Sarracenia leucophylla, the white-top pitcher, is another southern pitcher and perhaps the showiest, with the white upper areas of the tubes contrasting strikingly with darker venation.—The Washington Post, NOLA.com, 3 July 2017 Damage from hungry insects, cold weather or parasites can interrupt leaves’ normal venation patterns.—Laura Sanders, WIRED, 4 Feb. 2010