Definition:

- A lip-like structure, especially one of the three petal-like appendages of an orchid flower.

Example:

- The labellum of the orchid was a vibrant purple.

Definition:

- In entomology, the lower lip of an insect's mouthparts.

Example:

- The insect used its labellum to suck nectar from the flower.

Definition:

- A fleshy lip-like structure, in certain animals, including some invertebrates.

Example:

- The snail's labellum assisted in feeding.

Definition:

- (anatomy) A small lip-like structure; specifically one of the two flaps of skin covering the entrance to the female urethra.

Example:

- The labellum was examined during the medical procedure.

Definition:

- In botany, any petal-like appendage, often modified.

Example:

- The flower’s labellum played a key role in attracting pollinators.