abscission

noun
ab·​scis·​sion | \ ab-ˈsi-zhən How to pronounce abscission (audio) \

Definition of abscission

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

Examples of abscission in a Sentence

Recent Examples on the Web Day length triggers the trees to lay down an abscission layer, which in turn shuts down the chlorophyll generation. John Meyer, The Know, "Why do leaves change color in the fall?," 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, "Cleveland's West Side could play decisive role in picking the city's next mayor," 3 Nov. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'abscission.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of abscission

15th century, in the meaning defined at sense 1

History and Etymology for abscission

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

Keep scrolling for more

Learn More about abscission

Time Traveler for abscission

Time Traveler

The first known use of abscission was in the 15th century

See more words from the same century

Statistics for abscission

Last Updated

16 Nov 2019

Cite this Entry

“Abscission.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/abscission. Accessed 10 December 2019.

Keep scrolling for more

More Definitions for abscission

abscission

noun
ab·​scis·​sion | \ ab-ˈsizh-ən How to pronounce abscission (audio) \

Medical Definition of abscission

: the act or process of cutting off : ablation

Keep scrolling for more

More from Merriam-Webster on abscission

Rhyming Dictionary: Words that rhyme with abscission

Nglish: Translation of abscission for Spanish Speakers

Britannica.com: Encyclopedia article about abscission

Comments on abscission

What made you want to look up abscission? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to state or do over again or repeatedly

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!