Definition: A garden structure made of columns that supports a roof, often covered with climbing plants.

Example: We decided to build a pergola in our backyard to create a shaded area for relaxation.

Definition: The part of a flower that includes the outer layers, which can be the petals and the green parts that protect them.

Example: The perianth of the tulip is bright and colorful, attracting many pollinators.

Definition: The outer layer that covers the spore-producing part of certain fungi.

Example: The peridium protects the spores until they are ready to be released.

Definition: A type of gemstone that is yellowish-green in color and is a variety of the mineral olivine.

Example: She wore a beautiful necklace with a peridot pendant.

Definition: A type of rock that is mostly made up of olivine and other minerals, often found deep in the Earth's mantle.

Example: Geologists study peridotite to understand the composition of the Earth's interior.

Definition: Organisms like algae and small crustaceans that attach themselves to surfaces in freshwater environments.

Example: The periphyton on the rocks provided food for the fish in the stream.

Definition: A hard outer covering that protects and surrounds the colonies of certain small aquatic animals called hydrozoans.

Example: The perisarc provides essential protection for the delicate polyps living within it.

Definition: To die or come to an end, especially in a violent or sudden way; to cease to exist.

Example: Many species may perish if we do not take action to protect their habitats.

Definition: Relating to a group of hoofed animals that have an odd number of toes, like horses and rhinoceroses.

Example: The perissodactyl animals are known for their unique toe structure.

Definition: A type of hoofed mammal that belongs to the order Perissodactyla, which includes animals like horses, tapirs, and rhinoceroses. These mammals typically have an odd number of toes and specific teeth structures.

Example: The perissodactyls, such as horses and rhinos, are known for their unique toe structure.

Definition: A ring of tooth-like structures that surrounds the opening of a moss capsule or the area around the mouth of some invertebrates.

Example: The peristome of the moss capsule helps in the dispersal of spores.