- (transitive) To cut off. [First attested in the early 17th century.]
- (intransitive, botany) To separate by means of abscission; to shed or drop off. [First attested in the early 20th century.]
- “abscise” in Lesley Brown, editor-in-chief; William R. Trumble and Angus Stevenson, editors, The Shorter Oxford English Dictionary on Historical Principles, 5th edition, Oxford; New York, N.Y.: Oxford University Press, 2002, →ISBN, page 8.