Definition of "petal" in English

noun

1. (botany) One of the component parts of the corolla of a flower. It applies particularly, but not necessarily only, when the corolla consists of separate parts, that is when the petals are not connately fused. Petals are often brightly colored.

2. (euphemistic, hypocoristic) The labia (majora).

3. Term of endearment.

4. (geometry) A lobe of a rose (geometric shape).

verb

1. (ambitransitive) To spread out from, like the petals of a flower