Exam: TOEFL

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.

Definition: A disease that causes inflammation and lumps in the mouth, neck, chest, and abdomen, affecting cattle, pigs, and sometimes humans, caused by certain microorganisms.

Example: The veterinarian diagnosed the cow with actinomycosis after observing the lumpy jaw.

Definition: Relating to a type of bacterial infection caused by actinomyces, which can affect various parts of the body.

Example: The patient was diagnosed with an actinomycotic infection that required specific antibiotic treatment.

Definition: A thing that someone does, often involving movement or effort. It can refer to physical movements, behaviors, or activities that require energy.

Example: Taking action is essential to solving problems effectively.

Definition: In a way that can be acted upon or used to take action.

Example: The report provided actionable insights that the team could use to improve their strategy.

Definition: To make something start working or to cause it to become active.

Example: The technician will activate the new software system tomorrow.

Definition: The process of making something active or effective, often used in contexts like technology or science.

Example: The activation of the new software features improved user experience significantly.