Definition of abscission in English:

abscission

Syllabification: ab·scis·sion
Pronunciation: /abˈsiZHən
 
/

noun

Botany
  • The natural detachment of parts of a plant, typically dead leaves and ripe fruit.
    More example sentences
    • The presence and balance of plant hormones have been shown to affect abscission of leaves, flowers, and immature and mature fruit.
    • Ethylene is involved in many biological processes, like fruit ripening, flower and leaf abscission, senescence, many stress acclimations, and growth.
    • They produce numerous biological effects including promotion of leaf senescence and abscission, stomatal closure, inhibition of root growth, and germination of non-dormant seeds.

Origin

early 17th century: from Latin abscissio(n-), from abscindere, from ab- 'off, away' + scindere 'to cut'.

More definitions of abscission

Definition of abscission in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little