Exam: Cambridge English: C2 Proficiency (CPE)

Definition: A very small unit of measurement used in chemistry, equal to one trillionth of a mole.

Example: The concentration of the substance was measured in picomoles per liter.

Definition: Relating to a type of yellow acid that is bitter and used in various chemical processes.

Example: The laboratory used picric acid for its experiments due to its unique properties.

Definition: A style of photography that aims to create images resembling paintings, often with a focus on artistic expression and romantic qualities.

Example: Pictorialism was popular among photographers who wanted to elevate their work to the level of fine art.

Definition: The act of stealing small items, usually of low value, often repeatedly.

Example: The store suffered from pilferage, losing many small items each week.

Definition: A small, narrow tube used to measure or transfer liquids by sucking them up and releasing them.

Example: The scientist used a pipette to accurately measure the liquid for the experiment.

Definition: Relating to fish or fishing activities.

Example: The piscatory traditions of the region are celebrated during the annual fishing festival.

Definition: The central or most important part of something, often referring to the essence or core of an idea or object.

Example: The pith of the argument was clear and compelling, highlighting the main issue at hand.

Definition: To remove the central part of a plant stem or to kill an animal by cutting its spinal cord.

Example: The farmer decided to pith the cattle before processing them for meat.

Definition: A very small amount of money, often not enough to live on or to meet basic needs.

Example: After working all month, he received only a pittance for his efforts.

Definition: Describing a type of scale that is flat and tooth-like, typically found on certain fish like sharks and rays.

Example: The shark's skin is covered in placoid scales that help reduce drag in the water.

Definition: Describing a growth pattern where something grows at an angle that is not straight up, often leaning to the side or almost horizontally.

Example: The plagiotropic branches of the tree spread out widely, creating a unique shape.