radi-


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radi(o)-

 
word element [L.], ray; radiation; emission of radiant energy; radium; radius (bone of the forearm); affixed to the name of a chemical element to designate a radioactive isotope of that element.

radi-

prefix meaning "root": radiciform, radicotomy, radiectomy.

radi-

Combining form meaning root.
[L. radix, root]