Abscission meaning

ăb-sĭzhən
The act of cutting off.
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The shedding of leaves, flowers, or fruits following the formation of the abscission zone.
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A cutting off, as by surgery.
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The normal separation of fruit, leaves, etc. from plants by the development of a thin layer of pithy cells at the base of their stems.
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The act of cutting off.
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The separation of a leaf, flower, or fruit from a plant as a result of natural structural and chemical changes. &diamf3; The abscission zone is a layer of weak, thin-walled cells that form across the base of the plant part where the break eventually occurs. A corky layer containing suberin forms beneath the abscission zone to protect the plant.
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The act or process of cutting off.
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(rhetoric) A figure of speech employed when a speaker having begun to say a thing stops abruptly.
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(botany) The natural separation of a part at a predetermined location, such as a leaf at the base of the petiole. [First attested in the late 19th century.]
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Origin of abscission

  • Latin abscissiō abscissiōn- from abscissus past participle of abscindere to cut off ab- ab- scindere to cut skei- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin abscissiō, from abscindō (“I cut, I tear”).

    From Wiktionary