Exam: Cambridge English: C1 Advanced (CAE)

Definition: Describing something that is similar to or has characteristics of a type of volcanic glass called perlite, which is light and has a pearly appearance.

Example: The perlitic rock was lightweight and had a shiny, pearl-like surface.

Definition: The state of lasting for a long time without change; the quality of being unchanging or enduring.

Example: The permanence of the mountains makes them a beautiful backdrop for the valley.

Definition: The state of lasting for a long time without change; the quality of being permanent.

Example: The permanency of the mountains makes them a popular destination for hikers.

Definition: A type of salt that contains manganese and is known for its strong oxidizing properties.

Example: Potassium permanganate is often used as a disinfectant in water treatment.

Definition: The ability of a material to allow liquids or gases to pass through it.

Example: The permeability of the soil affects how quickly water drains away.

Definition: Able to allow liquids or gases to pass through it.

Example: The permeable material allowed water to flow through easily.

Definition: Able to pass through or enter a material or substance.

Example: The permeant substance was able to move through the membrane easily.

Definition: A substance that can move through or enter a membrane or polymer.

Example: The scientist studied the permeant to understand how it interacts with the membrane.

Definition: A type of protein found in cell membranes that helps move specific molecules in and out of the cell.

Example: The permease allows glucose to enter the cell more easily.

Definition: To spread or pass through something, often in a way that affects the entire area.

Example: The smell of fresh bread began to permeate the room.

Definition: To spread or flow through something, especially in a way that fills or affects it completely.

Example: The smell of fresh bread began to permeate the entire house.

Definition: The process of a liquid or gas passing through a material or substance.

Example: The permeation of water through the soil is essential for plant growth.