[{"word":"constantan","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"An alloy of copper and nickel whose resistivity is constant over a wide temperature range","synonyms":[],"antonyms":[]}],"synonyms":["eureka"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/constantan"]}]