venation

[ vee-ney-shuhn, vuh- ]

/ viˈneɪ ʃən, və- /

SEE SYNONYMS FOR venation ON THESAURUS.COM

noun

the arrangement of veins, as in a leaf or in the wing of an insect.

these veins collectively.

Origin of venation

1640–50; <Latin vēn(a) vein + -ation

OTHER WORDS FROM venation

ve·na·tion·al, adjective

Words nearby venation

venae cavernosae penis, venae rectae, venal, venality, venatic, venation, vend, Venda, vendace, Vendean, vendee

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for venation

The compound leaves correspond to these modes of venation; they are either pinnately or palmately compound.
Outlines of Lessons in Botany, Part I; From Seed to Leaf|Jane H. Newell
Remove all or nearly all the scales from a wing and note the arrangement of the veins (venation).
Elementary Zoology, Second Edition|Vernon L. Kellogg
The venation is peculiar, and the disposition of the sori depends mainly on the peculiarities of the venation.
Beautiful Ferns|Daniel Cady Eaton
It is not in all cases easy to trace the origin and true nature of the ascidium, as the venation is sometimes obscure.
Vegetable Teratology|Maxwell T. Masters

The venation is useful as pointing out the number of leaves which constitute a gamosepalous calyx.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5|Various

British Dictionary definitions for venation

venation

/ (viːˈneɪʃən) /

noun

the arrangement of the veins in a leaf or in the wing of an insect

such veins collectively

Derived forms of venation

venational, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for venation

venation

[ vē-nā′shən ]

The distribution or arrangement of a system of veins, as in an insect's wing or a leaf blade. Patterns of venation in insect wings are often used to identify and differentiate species. In angiosperm plants, the venation of eudicot and magnoliid leaves is generally netted or reticulate, with smaller veins branching out from larger ones in a pinnate or palmate pattern, while that of monocots is parallel, with many veins of similar size running parallel to each other along the length of the plant part. These parallel veins are connected to each other by much smaller cross veins.

The veins of such a system considered as a group.

单词	venation
释义	venation [ vee-ney-shuhn, vuh- ] / viˈneɪ ʃən, və- / SEE SYNONYMS FOR venation ON THESAURUS.COM noun the arrangement of veins, as in a leaf or in the wing of an insect. these veins collectively. Origin of venation 1640–50; <Latin vēn(a) vein + -ation OTHER WORDS FROM venation ve·na·tion·al, adjective Words nearby venation venae cavernosae penis, venae rectae, venal, venality, venatic, venation, vend, Venda, vendace, Vendean, vendee Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for venation The compound leaves correspond to these modes of venation; they are either pinnately or palmately compound. Outlines of Lessons in Botany, Part I; From Seed to Leaf\|Jane H. Newell Remove all or nearly all the scales from a wing and note the arrangement of the veins (venation). Elementary Zoology, Second Edition\|Vernon L. Kellogg The venation is peculiar, and the disposition of the sori depends mainly on the peculiarities of the venation. Beautiful Ferns\|Daniel Cady Eaton It is not in all cases easy to trace the origin and true nature of the ascidium, as the venation is sometimes obscure. Vegetable Teratology\|Maxwell T. Masters The venation is useful as pointing out the number of leaves which constitute a gamosepalous calyx. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5\|Various British Dictionary definitions for venation venation / (viːˈneɪʃən) / noun the arrangement of the veins in a leaf or in the wing of an insect such veins collectively Derived forms of venation venational, adjective Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to venation hair, nerve, seam, lode, stripe, streak, thread, duct, current, course, stratum, follicle, capillary Scientific definitions for venation venation [ vē-nā′shən ] The distribution or arrangement of a system of veins, as in an insect's wing or a leaf blade. Patterns of venation in insect wings are often used to identify and differentiate species. In angiosperm plants, the venation of eudicot and magnoliid leaves is generally netted or reticulate, with smaller veins branching out from larger ones in a pinnate or palmate pattern, while that of monocots is parallel, with many veins of similar size running parallel to each other along the length of the plant part. These parallel veins are connected to each other by much smaller cross veins. The veins of such a system considered as a group. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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venation

noun

Origin of venation

OTHER WORDS FROM venation

Words nearby venation

Example sentences from the Web for venation

British Dictionary definitions for venation

noun

Derived forms of venation

Words related to venation

Scientific definitions for venation