Exam: TOEFL

Definition: Describing something that has been cut or marked into a surface, often in a detailed or artistic way.

Example: The artist created an etched design on the glass.

Definition: To cut or carve a design or pattern into a surface, often using acid or a sharp tool.

Example: The artist etched a beautiful landscape onto the metal plate.

Definition: Lasting forever; having no beginning or end; timeless.

Example: Many people believe in an eternal life after death.

Definition: Not limited by time; lasting forever or without end.

Example: Many believe in an eternal life after death.

Definition: To make something eternal or lasting forever.

Example: The artist wanted to eternalize her memories in her paintings.

Definition: For an endless period of time; always.

Example: They promised to love each other eternally.

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: A state of time that lasts forever, without a beginning or an end.

Example: Many people believe in an eternity after death.

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

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

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.