(cytology) Any of a form of glial cell, characterized by long radial processes extending from the ventricular zone, that are important in neurogenesis

plural of radioactive dating

(archaic) The common beet, Beta vulgaris.

(radio) A wireless communications station installed at a fixed location and used to communicate as part of a two-way radio system or wireless telephone system.

(radio) A publicly available system of short-distance radio communications, usable by individuals or businesses without a license.

plural of radical ion

(astronomy, physics) A region of high-energy charged particles which partly surrounds a planet or star, trapped by its magnetic field and characterized by intense radiation.

light mill

A person who practises the hobby of amateur radio. Radio amateurs must possess a licence issued by the relevant authority in the country in which they live, and must pass an exam before they can obtain a licence to operate.

plural of radio amateur