Definition: Something that is designed to prevent air from entering or escaping, making it completely sealed.

Example: The container is airproof, ensuring that no air can enter or escape.

Definition: Describes something that has been sealed or constructed in a way that prevents air from entering or escaping.

Example: The airproofed container kept the food fresh for weeks.

Definition: A region of air that is affected by a specific source of pollution or emissions, often used in environmental studies to understand air quality and its impact.

Example: The city implemented new regulations to improve the air quality in the airshed.

Definition: A chemical used to kill unwanted plants, especially grasses and broadleaved weeds, in agricultural fields.

Example: Farmers often use alachlor to manage weed growth in their fields.

Definition: Algaecide is a substance used to kill or control the growth of algae, which are simple, plant-like organisms that can grow in water and on surfaces.

Example: The pond was treated with an algaecide to prevent the growth of algae.

Definition: Relating to a substance or method that kills algae.

Example: The algicidal treatment effectively reduced the algae growth in the pond.

Definition: A chemical that is used to eliminate or control the growth of algae in water.

Example: The pond was treated with an algicide to prevent the growth of harmful algae.

Definition: Alkalinity is the measure of how much alkali is present in a substance, indicating its ability to neutralize acids. It describes the quality of being alkaline, which means having a pH level greater than 7.

Example: The alkalinity of the water was tested to ensure it was safe for aquatic life.

Definition: The process of changing a substance to make it more alkaline, which means it has a higher pH level and is less acidic.

Example: The alkalinization of the soil improved its fertility.

Definition: A noun that refers to the process of land being increased by the deposition of soil or sediment, often due to the action of water, or the area of land that is formed in this way.

Example: The alluvion created new land along the riverbank after the flood.