1. plural of abscission; the natural separation and falling of leaves, flowers, fruits, or other plant parts from a plant.
Usage: botanical term; commonly used in plant science and horticulture
2. plural of abscission; the act of cutting off or the state of being cut off.
Usage: formal or technical usage; less common than botanical sense

Examples

• The abscissions of autumn leaves occur when daylight decreases.
• Botanists study the abscissions of flower petals to understand plant reproduction.
• Premature abscissions of fruit can reduce crop yield.
• The tree's abscissions happened earlier than usual due to drought stress.
• Abscissions in deciduous trees prepare them for winter dormancy.
• Hormonal changes trigger the abscissions of leaves in fall.