1. A group of plant hormones that regulate stress responses, seed dormancy, and stomatal closure; also called abscisic acid when referring to the primary compound.
Usage: biology; botany; plural form of abscisinin or collective term for abscisic acid compounds

Examples

• Abscisins help plants survive drought by closing their stomata.
• The concentration of abscisins increases when a plant experiences water stress.
• Researchers studied how abscisins regulate seed germination in different species.
• Abscisins play a crucial role in the plant's defense against environmental stress.
• The levels of abscisins in leaves rise during periods of dehydration.