[{"word":"haptoglobin","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A protein in blood plasma that binds free hemoglobin released from erythrocytes and thereby inhibits its oxidative activity.","synonyms":["haptoglobulin"],"antonyms":[]}],"synonyms":["haptoglobulin"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/haptoglobin"]}]