Latin · root
radius
ray; wheel spoke
Words sharing this root
radialExtending along lines outward from a center.radialRelating to the forearm bone on the thumb side.radiateExtending or spreading outward from a central point.radioCommunication carried by electromagnetic waves through space.radioactiveEmitting ionizing radiation through atomic decay.radioactivitySpontaneous emission of radiation from unstable atomic nuclei.radiumA radioactive metallic chemical element with atomic number 88.radiusThe bone on the thumb side of the forearm.radiusThe straight-line distance from a center to an outer edge.