All English words - page 3022

A mixture of isotopes of lead, together with some bismuth and polonium, which constitutes the longer-lived product of the decay of radon; (also) lead-210 (radium d), the major radioactive component of this mixture, which decays by beta emission with a half-life of about 22 years.

A rudist bivalve mollusc of the cretaceous genus radiolites or family radiolitidae.

The use of radio for determining the position of something by means of reflected radio waves or transmitted signals, especially for the purpose of navigation or tracking; specifically (originally british, now historical) radar, as first developed for locating enemy ships and aircraft.

A device that uses radio for locating something; an apparatus for radiolocation.

A device that uses radio for locating something; an apparatus for radiolocation.

Relating to the science of x-rays and other high-energy radiation.

Relating to the science of x-rays and other high-energy radiation.

A person who uses x-rays or other high-energy radiation, especially a doctor specializing in radiology.

A person who uses x-rays or other high-energy radiation, especially a doctor specializing in radiology.

Exhibiting or characterized by radioluminescence.

Of, relating to, or resulting from radiolysis.

An instrument for detecting or measuring the intensity or force of radiation.

An instrument for detecting or measuring the intensity or force of radiation.

Relating to the measurement of radioactivity.

An instrument for measuring very weak infrared or microwave radiation.

Necrosis of tissue caused by ionizing radiation; an instance of this (rare).

Of, relating to, or using radioactivity.

A system of alternative medicine based on the supposition that detectable electromagnetic radiation emitted by living matter can be interpreted diagnostically and transmitted to treat illness at a distance by complex electrical instruments.

A radioactive nuclide.

(of a substance) opaque to x-rays or similar radiation.

A navigational radio beacon.

Radio-telephone.

Radio-telephone.

Originally: any of various techniques for producing or transmitting sound or electrical signals using beams of light; especially = "photophony". in later use: the theory or technique of transmitting sound using radio waves; (more generally) radio broadcasting.

A radioactive isotope of phosphorus; specifically phosphorus-32, which decays by beta emission with a half-life of 14.3 days, and is widely used as a diagnostic and therapeutic agent.