[reyd-n] /ˈreɪd n/
Paul, 1883–1959, U.S. anthropologist, born in Poland.
[rey-dee-ahy] /ˈreɪ diˌaɪ/ noun 1. a plural of . [rey-dee-uh s] /ˈreɪ di əs/ noun, plural radii [rey-dee-ahy] /ˈreɪ diˌaɪ/ (Show IPA), radiuses. 1. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. 2. the length of such […]
[rey-dee-oh] /ˈreɪ diˌoʊ/ noun, plural radios. 1. wireless telegraphy or telephony: speeches broadcast by radio. 2. an apparatus for receiving or transmitting radio broadcasts. 3. a message transmitted by radio. adjective 4. pertaining to, used in, or sent by radio. 5. pertaining to or employing radiations, as of electrical energy. verb (used with object), radioed, […]
[rey-dee-oh-ak-tin-ee-uh m] /ˌreɪ di oʊ ækˈtɪn i əm/ noun, Chemistry. 1. the radioactive isotope of thorium having a mass number 227 and a half-life of 18.8 days. Symbol: RdAc, Th 227.
[rey-dee-oh-uh-koo-stiks] /ˌreɪ di oʊ əˈku stɪks/ noun, (used with a singular verb) 1. the science and technology of the production, transmission, and reproduction of sounds carried by radio waves.