Definition: Relating to a type of light that is not visible to the human eye and has shorter wavelengths than violet light.

Example: Ultraviolet light can cause sunburn and skin damage.

Definition: A type of light that is not visible to the human eye and has a shorter wavelength than visible light, often associated with sunburn and used in various technologies.

Example: Ultraviolet rays from the sun can cause skin damage if you are not protected.

Definition: To make a long, loud, mournful sound, often like a howl or wail, usually expressing strong emotion or grief.

Example: The mourners began to ululate as the procession passed by.

Definition: A type of green algae that has a flat, leaf-like structure and is often found in marine environments. Some species are edible and are known as sea lettuce.

Example: In many coastal areas, ulva is harvested for use in salads and soups.

Definition: A type of flower cluster where many small flowers grow from a single point, forming a flat or rounded shape.

Example: The garden was filled with beautiful umbels of flowers, attracting many bees and butterflies.

Definition: Relating to or having the shape of an umbel, which is a type of flower cluster where the stems spread from a common point.

Example: The plant's flowers are arranged in an umbellar pattern, creating a beautiful display.

Definition: Describing a shape or arrangement that resembles an umbrella, often used in botany to refer to flowers or leaves that are grouped together on a single stem.

Example: The umbellate flowers of the plant create a beautiful display in the garden.

Definition: A small cluster of flowers that forms part of a larger flower arrangement, typically seen in plants like carrots.

Example: The umbellet of the carrot plant is filled with tiny white flowers.

Definition: A type of plant that belongs to the carrot or parsley family, characterized by flowers that grow in a round cluster called an umbel.

Example: The garden was filled with beautiful umbellifers, attracting many bees and butterflies.

Definition: Relating to a group of flowering plants that have a flower structure called an umbel, which is a cluster of flowers with stems of equal length that spread from a common point.

Example: The garden was filled with umbelliferous plants, including carrots and parsley.

Definition: Describing something that has a rounded, knob-like shape or projection.

Example: The mushroom had an umbonate cap that stood out in the forest.