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vernation

[ver-ney-shuh n]
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noun Botany.
  1. the arrangement of the foliage leaves within the bud.
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Origin of vernation

1785–95; < New Latin vernātiōn- (stem of vernātiō), equivalent to Latin vernāt(us) (past participle of vernāre to be verdant; see vernal, -ate1) + -iōn- -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for vernation

Historical Examples

  • Convolute, rolled up lengthwise, as the leaves of the Plum in vernation, 72.

    The Elements of Botany

    Asa Gray

  • Involute, in vernation, 72; rolled inwards from the edges, 97.

  • Grew deals also with the vernation of leaves, and methods of bud protection.

  • In spring the terminal buds of saplings best show the peculiarity of the tree's vernation.

    Trees Worth Knowing

    Julia Ellen Rogers

  • In vernation the apex of each segment is bent down with a slight curve inward.

    The Fern Lover's Companion

    George Henry Tilton

British Dictionary definitions for vernation

vernation

noun
  1. the way in which leaves are arranged in the bud
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Word Origin

C18: from New Latin vernātiō, from Latin vernāre to be springlike, from vēr spring
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
vernation in Science

vernation

[vûr-nā′shən]
  1. The arrangement of young foliage leaves within a bud. The coiled arrangement of young leaves in fern fiddleheads is known as circinate vernation and protects the delicate leaf tips as they develop.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.