Exam: IELTS

Definition: A white powder or solid that comes from coal tar and is used in medicine to lower fever and ease pain.

Example: Acetophenetidin was once commonly used as a pain reliever before being withdrawn from the market due to safety concerns.

Definition: This word describes something that has a sour taste, similar to vinegar, or is related to vinegar or acetic acid.

Example: The acetous flavor of the dressing added a unique tang to the salad.

Definition: A chemical group derived from acetic acid, consisting of a carbon atom double-bonded to an oxygen atom and single-bonded to a methyl group.

Example: Acetyl is an important functional group in organic chemistry.

Definition: A chemical substance in the body that helps transmit signals between nerve cells. It is important for muscle movement and various functions in the nervous system.

Example: Acetylcholine plays a crucial role in muscle contraction and the functioning of the autonomic nervous system.

Definition: A clear, colorless gas that can easily catch fire or explode. It is used mainly for welding metal and in some chemical processes.

Example: Acetylene is commonly used in welding due to its high flame temperature.

Definition: To experience a continuous, dull pain or discomfort in a part of the body, or to feel a strong desire or longing for something.

Example: After the long hike, my legs began to ache.

Definition: A continuous, often mild pain that can be felt in different parts of the body. It can also refer to a strong feeling of sadness or longing.

Example: After the long hike, I felt an ache in my legs.

Definition: Something that can be done or accomplished successfully.

Example: Setting realistic goals makes them more achievable.

Definition: To successfully complete or reach a goal or desired outcome.

Example: She worked hard to achieve her goals this year.

Definition: To successfully reach a goal or complete something after putting in effort.

Example: She worked hard to achieve her goals.

Definition: Having reached a high level of skill or accomplishment; well-developed or refined.

Example: She is an achieved artist known for her stunning paintings.

Definition: A thing that has been done successfully, especially through hard work, skill, or determination.

Example: Winning the championship was a significant achievement for the team.