Definition: A type of marine snail that belongs to a group of mollusks, often without a shell and with gills located behind the heart.

Example: The opisthobranch is known for its vibrant colors and unique body structure.

Definition: In anatomy, this term refers to a direction towards the mouth or oral opening.

Example: The surgeon approached the area orad to ensure proper access to the oral cavity.

Definition: Having a color or quality that is similar to that of an orange fruit; somewhat orange in appearance.

Example: The sunset was a beautiful orangey hue that filled the sky.

Definition: This word describes something that has a more orange color than something else.

Example: The sunset was orangier than the one we saw yesterday.

Definition: The most orange in color or appearance.

Example: The sunset was the orangiest I had ever seen, filling the sky with vibrant hues.

Definition: Having a color that is similar to orange; somewhat orange in hue.

Example: The sunset was a beautiful orangy color, filling the sky with warmth.

Definition: A fictional creature often depicted as a large, ugly, and aggressive humanoid, commonly found in fantasy literature and games.

Example: In the game, the hero must battle an orc to save the village.

Definition: A large, powerful marine mammal known for its black and white coloring, often called a killer whale, that lives in oceans and is known for its intelligence and social behavior.

Example: The orca swam gracefully through the water, showcasing its impressive size and strength.

Definition: A type of extinct animal that resembled a sheep and belonged to a group of hoofed mammals that lived in North America during ancient times.

Example: Fossils of oreodonts have been found in many parts of North America, showing how widespread they were.

Definition: A type of small, oval-shaped mite that belongs to the superfamily Oribatoidea, known for having a tough outer skin and lacking eyes. These mites are not parasites and are often found in soil or leaf litter.

Example: Oribatids play an important role in the ecosystem by helping to decompose organic matter.