Exam: Cambridge English: C1 Advanced (CAE)

Definition: A characteristic of certain crystals that display different colors when viewed from different angles or with polarized light.

Example: The pleochroism of the gemstone made it appear to change color as I turned it in the light.

Definition: Relating to the ability to take on different shapes or forms.

Example: Some bacteria are pleomorphic, meaning they can change their shape depending on the environment.

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 word or phrase that uses more words than necessary to express an idea, often resulting in redundancy.

Example: Saying 'free gift' is an example of pleonasm because a gift is inherently free.

Definition: Relating to the use of more words than necessary, often repeating the same idea in different words.

Example: The author's pleonastic writing style made the book longer than it needed to be.

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: Having an excessive amount of something, often referring to an overabundance of blood or wealth; can also describe something that is overly elaborate or inflated in style.

Example: The author's plethoric writing style made the book difficult to read.

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.