Exam: IELTS

Definition: To cause a wave, such as light or sound, to change direction as it passes through an opening or around an obstacle.

Example: The scientist used a prism to diffract the light into a spectrum of colors.

Definition: The bending and spreading of waves, such as light or sound, when they pass around an obstacle or through a narrow opening.

Example: The diffraction of light through a prism creates a beautiful spectrum of colors.

Definition: Describing something that is spread out over a large area or not concentrated in one place. It can also refer to language that is overly wordy or not clear.

Example: The author's writing style was diffuse, making it hard to follow the main point.

Definition: To spread out or become widely distributed in different directions.

Example: The scent of the flowers began to diffuse through the air.

Definition: To cause something to spread out or become less concentrated.

Example: The scientist used a fan to diffuse the scent of the perfume throughout the room.

Definition: In a way that spreads out or is not concentrated in one area.

Example: The light from the lamp spread diffusely across the room, creating a soft glow.

Definition: The process by which particles spread out from an area of high concentration to an area of low concentration, often occurring in gases and liquids.

Example: The diffusion of perfume in the air can be noticed even from a distance.

Definition: Relating to the process of spreading out or mixing substances, especially in a fluid or gas.

Example: The diffusional process is essential for understanding how gases exchange in the lungs.

Definition: The idea that cultural changes happen when ideas or practices spread from one culture to another, often from more developed to less developed cultures.

Example: Diffusionism explains how Western ideas influenced many other cultures around the world.

Definition: Relating to the theory that cultural traits and ideas spread from one society to another.

Example: The diffusionist approach helps us understand how different cultures influence each other.

Definition: A person who supports the idea that cultural traits and innovations spread from one society to another rather than being created independently.

Example: The diffusionist argued that many cultural practices originated from a few key civilizations and spread across the world.

Definition: In a way that spreads out or disperses over a larger area.

Example: The scent of the flowers spread diffusively through the garden.

Definition: A measure of how easily a substance spreads out or moves through another substance, often used in the context of heat or particles passing through a material.

Example: The diffusivity of the material determines how quickly heat can escape from the surface.