Defn: pl. of Radius.
RADIO-
Ra"di*o-.
Defn: A combining form indicating connection with, or relation to, a radius or ray; specifically (Anat.), with the radius of the forearm; as, radio-ulnar, radiomuscular, radiocarpal.
RADIO-ACTIVE
Ra`di*o-ac"tive, a. [Radio-+ active.] (Physics)
Defn: Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. — Ra`di*o- ac*tiv"i*ty, n.
RADIOCONDUCTOR
Ra`di*o*con*duc"tor, n. (Elec.)
Defn: A substance or device that has its conductivity altered in some way by electric waves, as a coherer.
RADIO-FLAGELLATA
Ra`di*o-flag`el*la"ta, n. pl. Etym: [NL. See Radiate, and
Flagellata.] (Zoöl.)
Defn: A group of Protozoa having both flagella and pseudopodia.
RADIOGRAPH
Ra"di*o*graph, n. Etym: [Radio- + -graph.] (Phys.)