[{"word":"rads","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A non-SI unit of absorbed dose of radiation, equal to 0.01 gray.","synonyms":["rd"],"antonyms":[]}],"synonyms":["rd"],"antonyms":[]},{"partOfSpeech":"noun","definitions":[{"definition":"In the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle. Symbol: rad","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"noun","definitions":[{"definition":"Anything which radiates or emits rays.","synonyms":[],"antonyms":[]},{"definition":"A device that lowers engine coolant temperature by conducting heat to the air, through metal fins.","synonyms":[],"antonyms":[]},{"definition":"(of buildings) A finned metal fixture that carries hot water or steam in order to heat a room.","synonyms":[],"antonyms":[]},{"definition":"A type of antenna.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"noun","definitions":[{"definition":"The distance between the front and rear sights of a firearm.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/rad","https://en.wiktionary.org/wiki/radian","https://en.wiktionary.org/wiki/radiator","https://en.wiktionary.org/wiki/rads","https://en.wiktionary.org/wiki/sight%20radius"]}]