Exam: IELTS

Definition: A chemical compound that is used in making synthetic materials and can be found in some foods when they are cooked at high temperatures. It is known to be harmful to health.

Example: Acrylamide is formed when certain foods are cooked at high temperatures, such as frying or baking.

Definition: To do something or behave in a certain way, often in a manner that is not genuine or natural. It can also mean to perform in a play or show.

Example: She acts like a born leader.

Definition: A thing that is done, especially something that is done intentionally or as part of a performance. It can also refer to a formal document created by a government or organization, or a section of a play or opera.

Example: The act of Congress was signed into law last week.

Definition: To do something in a particular way, especially to perform a role in a play or to behave in a certain manner.

Example: She plans to act Lady Macbeth in the upcoming play.

Definition: A type of protein that plays a key role in muscle movement and helps maintain the shape of cells. It works together with another protein called myosin to allow muscles to contract and cells to move.

Example: Actin plays a crucial role in muscle contraction and cellular movement.

Definition: This word describes someone who is temporarily taking on a role or position, often in a performance or dramatic context. It can also refer to something that is suitable for theater or acting.

Example: She is the acting manager while the regular manager is on vacation.

Definition: The practice or skill of performing in plays, movies, or television shows, where a person takes on a character and acts out a story.

Example: She has been involved in acting since she was a child.

Definition: In a way that relates to or is caused by light, especially ultraviolet light, which can cause chemical reactions.

Example: The light was filtered actinically to enhance the chemical reactions.

Definition: A group of 15 radioactive elements in the periodic table, starting with actinium and ending with lawrencium, known for their similar chemical properties.

Example: The actinide series includes elements like uranium and plutonium, which are used in nuclear reactors.

Definition: A property of radiation that causes chemical changes, especially in the presence of light.

Example: The actinism of sunlight is essential for photosynthesis in plants.

Definition: A chemical element that is radioactive and is found in uranium ores. It is used to produce alpha rays and has properties similar to another element called lanthanum. The most stable form of this element has a long half-life.

Example: Actinium is used in radiation therapy for cancer treatment.

Definition: A type of microorganism that looks like a mix of bacteria and fungi, often found in soil and can sometimes cause disease.

Example: Actinomycetes play a crucial role in soil health and nutrient cycling.

Definition: A type of antibiotic that is usually red and comes from soil bacteria, used to stop the production of DNA or RNA in cells.

Example: Actinomycin is used in cancer treatment to inhibit the growth of cancer cells.