1. Plural of perianth; the outer envelope of a flower, consisting of the calyx and corolla together.
Usage: botanical term; used in botany and horticulture

Examples

• The perianths of these tulips display vibrant colors.
• Botanists examined the perianths to classify the plant species.
• The perianths protect the reproductive organs of the flower.
• Different flowers have perianths with distinct structures and textures.
• The perianths fell away as the flower matured.