Definition: The presence of different forms or shapes in organisms or substances during their life cycle or structure.

Example: In biology, pleomorphism can be observed in certain bacteria that can change their shape depending on environmental conditions.

Definition: A type of limb found on the abdomen of certain crustaceans, used for swimming.

Example: The shrimp used its pleopods to propel itself through the water.

Definition: A type of larva from certain tapeworms that has a long, solid body and is capable of causing infection, often found in the muscles of fish.

Example: The fisherman was concerned about the presence of plerocercoids in the fish he caught.

Definition: A large, extinct marine reptile that lived in the oceans during the time of the dinosaurs, known for its long neck and paddle-like limbs.

Example: The plesiosaur swam gracefully through the ancient seas, using its flippers to navigate.

Definition: A large amount of something, often more than what is needed or wanted.

Example: The garden had a plethora of flowers in every color.

Definition: A record created by a device that measures changes in volume within an organ or body part, often used to assess blood flow or other physiological changes.

Example: The doctor reviewed the plethysmogram to analyze the patient's blood circulation.

Definition: A medical test that measures changes in volume within an organ or body part, often used to assess blood flow or lung function.

Example: The doctor ordered a plethysmography to evaluate the patient's blood circulation.

Definition: A thin, flexible membrane that covers each lung and lines the chest cavity in mammals.

Example: The doctor explained that the pleura helps protect the lungs and allows them to expand and contract smoothly.

Definition: Relating to the pleura, which are the membranes surrounding the lungs and lining the chest cavity.

Example: The doctor explained that the pleural cavity can become inflamed, causing pain during breathing.

Definition: A medical condition where the pleura, the membrane surrounding the lungs, becomes inflamed, often causing pain during breathing and coughing.

Example: The doctor diagnosed her with pleurisy after she complained of sharp chest pain.