Exam: Cambridge English: C1 Advanced (CAE)

Definition: Something that causes harm to the environment by introducing pollutants.

Example: The factory was fined for its pollutive practices that harmed the local river.

Definition: A chemical element that is a radioactive metal, found in very small amounts and produced from the decay of radium. It has several forms, known as isotopes, and is used in various scientific applications.

Example: Polonium is used in some types of nuclear batteries and as a heat source in space probes.

Definition: A type of synthetic material made from polymers, often used in fabrics and plastics.

Example: The shirt is made of poly, which makes it durable and easy to wash.

Definition: A type of synthetic polymer made from acrylamide monomers, often used in various industrial and laboratory applications, including as a thickening agent or in gel electrophoresis.

Example: Polyacrylamide is commonly used in laboratories for separating proteins in gel electrophoresis.

Definition: Relating to a structure or concept that involves many parts or elements.

Example: The polyadic relationship among the team members allowed for diverse ideas and collaboration.

Definition: A type of plastic made from long chains of molecules that contain amide groups, commonly used in fabrics and materials like nylon.

Example: The jacket is made of polyamide, which makes it both durable and lightweight.

Definition: A type of organic compound that has more than one amino group in its structure, consisting of carbon, nitrogen, and hydrogen.

Example: Researchers are studying the effects of polyamines on cell growth.

Definition: Describing a relationship where a woman has multiple husbands at the same time.

Example: In some cultures, polyandrous marriages are practiced as a way to manage land and resources.

Definition: Relating to a molecule that consists of three or more atoms.

Example: Water is a polyatomic molecule because it has three atoms: two hydrogen and one oxygen.

Definition: Having multiple centers of authority or control, rather than a single dominant one.

Example: In a polycentric world, power is distributed among various centers rather than being concentrated in one place.

Definition: Not a valid English word.

Example: Not available