Definition from Wiktionary, the free dictionary
- (US) IPA(key): /æbˈsɪ.ʃn̩ ˈleɪ.ɚ/, /æbˈsɪ.ʒn̩ ˈleɪ.ɚ/
- (Received Pronunciation) IPA(key): /æbˈsɪ.ʃn̩/, /æbˈsɪ.ʒn̩ + IPA(key): /ˈleɪ.ɚ/, /ˈleɪ.ə/, /ˈlɜ.ə/, /ˈlɜ.ɚ/
- (botany) A layer of cells in a plant that differ from those above and below, and contain abundant starch and dense cytoplasm, which upon disorganization, begin the process of abscission, or the natural separation of the leaf from the rest of the plant.
layer of cells in a plant which begin the process of abscission