Definition: The area of science that focuses on measuring and detecting energy that travels in the form of electromagnetic waves.

Example: Radiometry is essential for understanding how different materials absorb and emit radiation.

Definition: An adjective describing substances that have effects on living tissue that are similar to the effects caused by radiation.

Example: The researchers studied a radiomimetic compound to understand its impact on cell growth.

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: A device that allows people to communicate using radio waves, typically for voice communication over long distances.

Example: The ship used a radiophone to stay in contact with the coast guard.

Definition: A picture that is sent or received using radio waves.

Example: The scientist analyzed the radiophoto to study the distant planet's surface.

Definition: A device that is sent into the atmosphere, usually by a balloon, to collect and send back weather information.

Example: The scientists launched a radiosonde to measure temperature and humidity at different altitudes.

Definition: A system used to send messages over long distances using radio waves instead of wires.

Example: The ship used a radiotelegraph to communicate with the coast guard during the storm.

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 type of thorium that is radioactive and has a mass number of 228.

Example: Radiothorium is used in some scientific research due to its radioactive properties.

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.