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单词 vernation
释义

Definition of vernation in English:

vernation

noun vəːˈneɪʃ(ə)nvərˈneɪʃən
mass nounBotany
  • The arrangement of bud scales or young leaves in a leaf bud before it opens.

    Compare with aestivation
    Example sentencesExamples
    • Leaf vernation was observed in at least ten buds per entity, manually dissected under a stereomicroscope.
    • Even in face view the involute vernation is easily observed for the brief time that a leaf is emerging.
    • Circinate vernation is the unfurling of the leaves over time.
    • This plant also has a folded vernation and a very smooth leaf blade.
    • Recently, a third type of leaf vernation has been shown to occur in Primula.

Origin

Late 18th century: from modern Latin vernatio(n-), from Latin vernare 'to grow (as in the spring)', from vernus (see vernal).

 
 

Definition of vernation in US English:

vernation

nounvərˈnāSHənvərˈneɪʃən
Botany
  • The arrangement of young leaves in a leaf bud before it opens.

    Compare with estivation
    Example sentencesExamples
    • Leaf vernation was observed in at least ten buds per entity, manually dissected under a stereomicroscope.
    • Circinate vernation is the unfurling of the leaves over time.
    • Recently, a third type of leaf vernation has been shown to occur in Primula.
    • This plant also has a folded vernation and a very smooth leaf blade.
    • Even in face view the involute vernation is easily observed for the brief time that a leaf is emerging.

Origin

Late 18th century: from modern Latin vernatio(n-), from Latin vernare ‘to grow (as in the spring)’, from vernus (see vernal).

 
 
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更新时间:2024/11/10 20:05:37