1. the petals of a flower collectively, forming the inner floral envelope
Usage: botanical term; plural of corolla

Examples

• The roses displayed bright red corollas in the garden.
• Botanists study the different shapes and sizes of corollas.
• The corollas of these wildflowers attract many bees.
• Each species has distinctively colored corollas.
• The corollas fell to the ground after the flowers bloomed.
• Scientists measured the diameter of the corollas for their research.