abscission

noun

ab·scis·sion ab-ˈsi-zhən How to pronounce abscission (audio)

: the act or process of cutting off : removal

: the natural separation of flowers, fruit, or leaves from plants at a special separation layer

Example Sentences

Recent Examples on the Web It’s a process called abscission, Tauscher said, where the trees retrench those chemicals and release the leaf.

Sarah Bowman, The Indianapolis Star, 5 Oct. 2021 Day length triggers the trees to lay down an abscission layer, which in turn shuts down the chlorophyll generation.

John Meyer, The Know, 24 Sep. 2019 Eventually, as the veins in the leaf close down, a layer of cells called the abscission layer forms at the base of the leaf stem before falling off.

Andrew J. Tobias, cleveland.com, 3 Nov. 2017

Word History

Etymology

Middle English abscisioun, borrowed from Medieval Latin abscīsiōn-, abscīsiō "cutting off, felling, amputation," going back to Latin, "aposiopesis," from abscīdere "to cut off or away, remove" + -tiōn-, -tiō, suffix of action nouns; spelling abscission (in Late and Medieval Latin as abscissiōn-, abscissiō) by construing the noun as a derivative of Latin abscindere "to tear off or away" — more at abscise, abscissa

First Known Use

15th century, in the meaning defined at sense 1

单词	abscission
释义	abscission noun ab·scis·sion ab-ˈsi-zhən 1 : the act or process of cutting off : removal 2 : the natural separation of flowers, fruit, or leaves from plants at a special separation layer Example Sentences Recent Examples on the Web It’s a process called abscission, Tauscher said, where the trees retrench those chemicals and release the leaf. Sarah Bowman, The Indianapolis Star, 5 Oct. 2021 Day length triggers the trees to lay down an abscission layer, which in turn shuts down the chlorophyll generation. John Meyer, The Know, 24 Sep. 2019 Eventually, as the veins in the leaf close down, a layer of cells called the abscission layer forms at the base of the leaf stem before falling off. Andrew J. Tobias, cleveland.com, 3 Nov. 2017 Word History Etymology Middle English abscisioun, borrowed from Medieval Latin abscīsiōn-, abscīsiō "cutting off, felling, amputation," going back to Latin, "aposiopesis," from abscīdere "to cut off or away, remove" + -tiōn-, -tiō, suffix of action nouns; spelling abscission (in Late and Medieval Latin as abscissiōn-, abscissiō) by construing the noun as a derivative of Latin abscindere "to tear off or away" — more at abscise, abscissa First Known Use 15th century, in the meaning defined at sense 1 Medical Definition abscission noun ab·scis·sion ab-ˈsizh-ən : the act or process of cutting off : ablation
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abscission

noun

Example Sentences

Word History

Medical Definition

noun