RADIOTELEPHONE
Ra`di*o*tel"e*phone, n.
Defn: A wireless telephone. — Ra`di*o*te*leph"o*ny (#), n.
RADIOTHERAPY
Ra`di*o*ther"a*py, n. [Radio-+ therapy.] (Med.)
Defn: Treatment of disease by means of Röntgen rays or other forms of radioactivity.
RADIOTHORIUM
Ra`di*o*tho"ri*um, n. (Chem.)
Defn: A radioactive substance apparently formed as a product from thorium.
RADIOUS
Ra"di*ous, a. Etym: [L. radiosus.]
1. Consisting of rays, and light. [R.] Berkeley.
2. Radiating; radiant. [Obs.] G. Fletcher.
RADISH Rad"ish, n. Etym: [F. radis; cf. It. radice, Pr. raditz: all fr. L. radix, -icis, a root, an edible root, especially a radish, akin to E. wort. See Wort, and cf. Eradicate, Race a root, Radix.] (Bot.)