Pronunciation key

( ab-sizhən )
( ab-sishən )



[L. abscissio see ABSCISSA].

  1. A cutting off such as by surgery.
  2. Abrupt stop, such as in mid-sentence for rhetorical effect.
  3. The dropping of leaves, flowers, fruit or other parts of the plant normally following the formation of an abscission zone.


  • Biology of Plants, Fourth Edition, Worth Publishers Inc., Stanford University, Peter H. Raven and Helena Curtis, ©1971
  • Webster's New World Dictionary of the American Language (College Edition) ©1955
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