- a cutting off, as by surgery
- the normal separation of fruit, leaves, etc. from plants by the development of a thin layer of pithy cells at the base of their stems
Origin of abscissionMiddle English abscisioun ; from Classical Latin abscissio: see abscissa
- The act of cutting off.
- Botany The shedding of leaves, flowers, or fruits following the formation of the abscission zone.
Origin of abscissionLatin abscissi&omacron;, abscissi&omacron;n-, from abscissus, past participle of abscindere, to cut off : ab-, ab- + scindere, to cut; see skei- in Indo-European roots.
Not to be confused with abscision, which only is defined as the first sense.
From Latin abscissiō, from abscindō (“I cut, I tear”).