Exam: Cambridge English: C1 Advanced (CAE)

Definition: The state of being eternal; a quality of lasting forever without end.

Example: The concept of eternalness is often explored in philosophy and religion.

Definition: To make something last forever or to make it famous for a long time.

Example: The artist hoped to eternise his work through this exhibition.

Definition: To make something last forever or to make it eternal.

Example: The artist hoped to eternize his work through his paintings.

Definition: Made eternal or immortal; preserved in a way that lasts forever.

Example: The artist eternized her memories in a beautiful painting.

Definition: A chemical compound that is the simplest aldehyde, often used in organic chemistry and as an intermediate in various chemical processes.

Example: Ethanal is commonly used in the production of acetic acid.

Definition: A colorless and odorless gas that is part of natural gas and is used for fuel and refrigeration.

Example: Ethane is often used in the production of ethylene, which is a key ingredient in many plastics.

Definition: A clear, colorless liquid that is an amino alcohol, often used as a solvent in various industrial processes, including petroleum purification and the production of detergents and pharmaceuticals.

Example: Ethanolamine is commonly used in the production of detergents and as a solvent in dry cleaning.

Definition: A colorless gas that is used in the production of plastics and other chemicals, often referred to as ethylene.

Example: Ethene is commonly used in the manufacturing of polyethylene, a widely used plastic.

Definition: A type of chemical compound that consists of two hydrocarbon groups connected by an oxygen atom, often used as a solvent or in chemical reactions. It was also historically used as an anesthetic.

Example: The chemist used ether as a solvent in the laboratory experiment.

Definition: Describing something that is very light, delicate, and often seems otherworldly or spiritual.

Example: The dancer moved with an ethereal grace that captivated the audience.