Definitions of petal

1. part of the perianth that is usually brightly colored

2. One of the leaves of the corolla, or the colored leaves of a flower. See Corolla, and Illust. of Flower.

3. One of the leaves, usually bright- colored, of a blossom.

4. A flower- leaf.

5. In bot., the leaf of an expanded flower; one of the separate parts of a corolla or flower.

6. One of the separate parts of a corolla.