[{"word":"proterozoic","phonetics":[],"meanings":[{"partOfSpeech":"adjective","definitions":[{"definition":"Of or relating to the geologic eon from 2,500 Ma to 541.0±1.0 Ma.","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/Proterozoic","https://en.wiktionary.org/wiki/proterozoic"]}]