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abscission

ab·scis·sion [ ab sí'n ]


noun 
Definition:
 
1. cutting off: the act of suddenly cutting something off

2. detachment of parts from plants: the natural process by which leaves or other parts are shed from a plant

[Early 17th century. < Latin abscission-< abscindere "cut off" < scindere "cut up, divide"]
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