Exam: Cambridge English: C2 Proficiency (CPE)

Definition: The state of decay or rotting, often associated with the decomposition of organic matter.

Example: The putrescence of the old food made the kitchen smell terrible.

Definition: Describing something that is in the process of decaying or rotting, often producing a foul smell.

Example: The putrescent smell from the garbage made everyone feel nauseous.

Definition: A sudden and often violent attempt by a group to take control of a government.

Example: The military staged a putsch to seize power from the elected officials.

Definition: A person who takes part in a sudden and often violent attempt to overthrow a government.

Example: The putschist led a group of rebels in an attempt to seize power from the current regime.

Definition: A small structure found in the chloroplasts of some algae and plants that helps in storing starch and fixing carbon dioxide.

Example: The pyrenoid plays a crucial role in the photosynthesis process of certain algae.

Definition: A process used to extract metals from their ores by using heat, often involving methods like smelting and roasting.

Example: Pyrometallurgy is commonly used in the extraction of copper and iron from their ores.

Definition: Relating to a group of minerals known as pyroxenes, which are commonly found in igneous and metamorphic rocks.

Example: The geologist studied the pyroxenic composition of the rock sample.

Definition: A type of mineral that looks similar to pyroxene and includes certain silicates that were once considered pyroxenes but are now classified differently.

Example: Rhodonite is an example of a pyroxenoid mineral that is often used in jewelry.

Definition: A person who is unable to move their arms and legs due to paralysis.

Example: The quadriplegic athlete inspired many with his determination and spirit.

Definition: Relating to a chemical element or compound that has a valence of four, meaning it can form four bonds with other atoms.

Example: In chemistry, carbon is often described as quadrivalent because it can form four covalent bonds with other atoms.

Definition: A group of four elements or components, often used in genetics to refer to a set of four homologous chromosomes that pair together during cell division.

Example: The study focused on the behavior of a quadrivalent during meiosis.