Exam: Cambridge English: C1 Advanced (CAE)

Definition: A type of atom that is unstable and emits radiation as it breaks down.

Example: Scientists study radionuclides to understand their effects on health and the environment.

Definition: Not allowing x-rays or other types of radiation to pass through.

Example: The doctor used a radiopaque dye to help visualize the organs during the scan.

Definition: A method or process that protects living organisms from the harmful effects of radiation.

Example: Radioprotection measures are essential for workers in nuclear power plants.

Definition: Relating to the protection against harmful effects of radiation.

Example: Certain substances are known to have radioprotective properties that help shield cells from radiation damage.

Definition: A substance that helps protect living tissues from the harmful effects of radiation.

Example: Scientists are researching new radioprotective agents to safeguard patients during radiation therapy.

Definition: Having a reaction or response to radiation, particularly in biological contexts.

Example: Certain types of cancer cells are radiosensitive, meaning they can be effectively treated with radiation therapy.

Definition: A medical procedure that uses focused radiation to treat or destroy diseased tissue, such as tumors, without the need for traditional surgery.

Example: The doctor recommended radiosurgery as a less invasive option for treating the tumor.

Definition: A method of sending messages over long distances using radio waves instead of wires.

Example: The invention of radiotelegraphy revolutionized communication at sea.

Definition: A method of sending data over long distances using radio waves.

Example: The scientists used radiotelemetry to track the movements of the animals in the wild.

Definition: A substance that contains a small amount of radioactive material, used in medical imaging or research to track processes in the body or other systems.

Example: The doctor used a radiotracer to help visualize the patient's organs during the scan.

Definition: A rare and radioactive metal that glows in the dark and is found in small amounts in certain minerals. It is used in medical treatments and in some types of paints that shine.

Example: Radium was once commonly used in cancer treatment before safer alternatives were discovered.